VIEN BIA
it
-
^":EN
KHOCN VIET NAM HOI B|A LY VIET NAM
NGHIEN
cuu
TIEM NANG DU LICH TlT NHIEN TINH QUANG BINH
PHUC VU
SU
DUNG HOP LY TAI NGUYEN THIEN NHIEN
VA BAO VE MOI TRUONG
Truong Thj
Tir
SUMMARY
Quang Binh is a
centred coasted
province of Viet Nam. In recent years, much
atlenlion has been paid lo this province wilh un
uini
to develop natural tourism.
Inficicl,
its tourism polenlial hasn 7 exploded
efifiecllvely.
On the other
hand,
developing tourism
musl be associated wilh protecting its nature cmd environment. Due lo researching the
Quangbinh 's natural tourism polenliul. the article offers some orienlalions to develop
lourism based on using natural resources reasonably and protecting environment.
LDAT VANDE

quan tam dau tu phdt trien Du ljch. Cd
nhieu
dc tdi, du an nghien ciru ve eac van de dac
diem dja ly
tir
nhien hien dai cua mdt sd tdi nguyen Du Ijch, nham ddt co' sd khoa hgc
cho viec khai thdc cdc tiem nang Du ljch ndy. Song de phat trien Du ljch ben vfrng. lau
ddi thi viec nghien cuu mgt cdch cd be: llidng vd loan dien ve dieu kien
tir
nhien, ldi
nguyen Du ljch tu nhicn Qudng Binh Id dic;u
hiit
sire quan trgng vd can thiet.
Trong khudn khd mdt bdi bdo, cluing tdi ldng hgp, phan tich, danh gia lai mdt
cdch tdng quat, cd he thdng ve tiem nang Du ljch
tir
nhien cua Quang Binb.
Nham'dua
ra nhirng djnh hudng va giai phap phdt trie:n Du ljch tren ca sd sir dung hgp ly tai
nguyen thien nhien va bao ve mdi trudng
eiia
vimg dat nay.
2.
PHAN TICH TIEM NANG, THE MANH DU LICH TlT NHIEN QUANG BINH.
2.1.
Vj
tri
dja ly, pham vi lanh thd
Quang Binh ndm d phia Ddng
ciia

Bg,
nam d nai cd be ngang hep nhdt nirdc ta, tai Ddng Hdi chilu rdng lu Ddng sang
Tay chua ddy 50 km. Qudng Binh cd die;n tich viing
thim
luc dja
bo'n
20 nghin km2 va
ngodi khoi cd 5 hdn ddo Id Hdn La, hdn Ncdm, bdn Gid, Hdn Cd va hdn Vung Chiia.
Qudng Binh cd dien tich lu
nhii:n
Id
8.065
km2, dan sd trung binh nam 2008 Id
857.818 ngudi vdi mat do trung binh 106 ngu'di/km2. Hien nay Quang Binh cd 1 thdnh
phd la Ddng Hdi, 6 huyen, 141 xa, 8 phudng vd
10
thj trdn [5].
Ve mat tu nhien, Qudng Binh nam trong ddi kien tao Bac Trudng San, phia Tdy
la day Trudng Son an ngfr, phia Ddng la ddi ddng bang nhd hep va nhfrng day edn eat
chay dgc bd bien. Vugt qua deo Ngang, linh chdl lanh cd phan gidm
siit,
Qudng Binh
chju anh lurdng
ciia
gid
miia
chi
tuyi:n
khdng cd
miia

trien nhieu loai hinh Du ljch bien vdi nhfrng bai tdm dep, bang phang, khu vui choi gidi
tri va khu nghi duong ven bien.
Mat kbdc, nam tren "eon dudng di sdn Mien Trung", Quang Binh cd nhieu dieu
kien thuan Igi de bdi nhap vd
|)hat
trien Du ljch, dua Du Ijch trd thanh the manh trong
nen kinh te.
2.2.
Ve dja chat
Theo nhieu tai
lieu
nghien cuu cua Cue dja chat va khoang san Viet nam tbi lanh
tho Quang Binh thugc ddi Long Dai va mdt
phan
ddi Hoanh San. Ddi Long Dai nam ve
phia nam dirt gay Rao Nay cho den Rao Quan - Khe Sanh thugc tinh Qudng Trj, phia
tay keo sang tan Lao, chiem phan ldn dien tich lanh thd Quang Binh. Bd phan thugc ddi
Hoanh San ndm d phia bac dirt gay Rao Nay, chiem mgt dien tich nhd. Phia ddng Id cac
sut vdng Kaindzdi tren nen mdng cau triic
ciia
2 ddi Hoanh San va Long Dai gdm ddng
bdng Ba Ddn, Le Thiiy,
lain
gide chau eira sdng Nhat Le [6].
Tren
co'
sd nghien ciru thdnh phan thach bge, quy luat phan bd, mdi quan he dja
tdng, boat ddng mac ma cho thay khdi nui dd vdi Phong Nha-Ke Bang cd tren 400 trieu
nam tudi nay cd tram tich
ehii

ingt
trong nhfrng khu vuc dugc dua vdo khai thdc
dt;
phdt
trii:n
nhilu loai binh Du ljch d Qudng Binh, gan day edc nhd dja chat dang quan ldm nghien
ciru de xay dung Cdng \ ic;n dja
dial o
Phong Nha-Ke Bdng, mcdt trong nhfrng thi; manh
Du ljch it noi cd dugc.
2.3.
Ve
dia hinh
Quang Binh cd xu hudng
ihap
ddn tir tdy sang ddng. Phia
ta\'
clui yeu
Id
nui trung
binh \d
luii
thap chicm tdi 85% dien tich loan tinh, phan ddng bang nhd
lie:p
d phia
dong chi
chiiiin
khodng
1
5%.

U
Bd, Ba Ren, mii
Thii
Lii,
Cd Roong, Cd Pru. thudng
eau tao bdi dd xam nhap. dudng chia nude phirc lap, dinh nhgn, sudn ddc. Mdl sd dinh
cao tren
1500m
nlur:
Phu Cd Pi
(2058ni)
\'d dinh Cdta Rum (1623m). Day
Id
khu
virc
ccin ton tai rirng
ngu)'eii
sinh. Ddc
bii;l.
trong \'img cd cdc dang dja hinh
cacxto
phdn bd
rdng \'d'i khdi mii dd vdi Khe Ngang - Ke Bdng do cao trung binh 700 -
800ni.
ihap
ddn
lu nam ra bac va lir lay sang ddng, nam sal bien gidi Viet - Lao, trong Idng chua dung
tren 300 hang ddng ldn nhd cd gid trj hdng dau the gidi [6]. Q day he thdng sdng ngam
rat phdt trien lao nen cdc hang dgng ddi \
d

did
cao tir 50m den
250ni.
Phdn bd rdng
khdp cdc huyen, dgc theo cdc thung lung sdng. Cdu tao
chii
yen bdi edc tram tich luc
nguyen. da bien chat. Chju tdc dgng manh cua qua trinh bao mdn-rira trdi nen cd dang
cac ddi hoac day ddi mem mai.
]'inig
ddng bdng duyen hai: Nam trung thdp o' gifra. cd do cao ttr
15m
trd xudng.
Chicm chung
1
1% dien tich ldnh thd. phan bd clui yeu d cac huven Le Tluiy, Qudng
Ninh. Ddng Hdi, Bd Trach vd Quang 1 rach. Cd ngudn gdc mdi mdn-bdi tu sdng, sdng-
bien. Dugc bdi dap bdi
phii
sa sdng Gianh. song Kien Giang, sdng
Ly
llda,
sdng Dinh,
sdng Rdon.
Dui can
cdi
ven bien: Kc;o ddi Ur chdn deo Ngang (Quang Trach)
den
Mui Lay
(Lc:

VIEW DIA LY -
VIE?'!
KHBCN
VIET NAM HOI DIA LY VIET NAM
tugng cdt bay, cdt chay ldn chiem ddng rugng. ldng mac, dirdng giao thdng gay nhieii
khd khan cho sdn xudl vd sinh boat cua ngirdi ddn noi day. 0 gdn khu \ uc ede cua sdng
cdn ed cdc bau, tram, ddm phd
nude
Ig khdng
chi
de; nudi trdng eac loai thuy sdn, nui
cdn Id noi phdt Irien cdc djch vu dn udng, tlurdng thiic dac sdn phuc vu du Ijch.
O
ven bien, cdc bdi edl ddi. bdng phdng nlur Qudng Ddng, Da Nhdy, Quang Phu,
Nhat Le, Hai Ninh, Ngu Flda, Sen
Fbuy chay
dgc theo bd
bii;n
la nhung cdnh quan
dep,
ed
the:
thu
bin
khdch du
Ijeh.
Cdc hdn ddo ngodi khoi nhu Fldn La, Vung
Chtia.
Ddo
Chim Id

ciia
cac
nhieu
ddng nlur: gid
miia
Ddng Bdc, bdo, dp
ihdp
nhiet ddi, ddi hdi tu ndi chi
tuyen gay
mua
ldn,
Ifi
lui.
Trong khi dd
miia
ha d ddy
lluriing
khd, ndng do dnh hudng
ciia
gid
miia
Tay
Nam, ddi kbi xay ra linh trang thieu nude vd khd ban tram trgng gay ra
nhieu
thiet hai
cho sdn xuat va ddi sdng con ngudi.
Qudng Binh cd
iie:n iiliicl
luong ddi eao, tdng nhiet ded boat ddng trong ndm d
Qudng Binh dat tu 8000-8500"C, nhiet do trung binh dat tu 24 ~

Id loai ldi
nguyen
du ljch da dang, dugc khai thdc de phuc vu cho nbieu mue
dich du Ijeh khac nbau. Khi hdu cung Id dieu kien tu nhicn anh huong true tiep den
viec
trien khai ede boat ddng du Ijch, quy djnh linh chdt
miia
vu trong boat ddng du ljch.
Khi ban Quang Binh khdng thudn lgi nhieu cho boat ddng Du Ijch va quy djnh rat
ldn tinb
niiia
vu cua cac boat dcdng Du Ijeh. Hang nam Qudng Binh chi ddn dugc khach
den tham vdo nhfrng thdng khdng cd nura lfr(tir thang 2 den thdng 9 hdng nam), vdo
iniia
he Qudng Binh la nai nghi ngoi vd
lain
bien ly tudng
ciia
du khdch. Ben canh dd
khi ban Qudng Binb tao dieu kien thudn Igi cho ngudn sinh vat phdt trien phong phu, da
dang, nhu Vudn Qudc gia Phong Nha - Ke Bdng.
2.5. Vc thuy
viin:
Sdng ngdi: So vdi cd nu'de Quang Binh cd mang ludi sdng ngdi kha day dac, mat
do trung binh dat 1,1 km/knr va phdn bd khdng ddng deu, d phia lay day dac hon so
Hdi nehi Khoa hoc Dia ly Toan qud'c lan
thd5
- Ha Ndi , 2010 13S1
VIEN DIA
LY -

ciia
ddi hdi tu ndi chi tuyen.
Miia
lu
lugng ddng
chav
chiem tir 70 den 80% lugng nude ca nam, dinh
Ifi
xuat bien vao thang
9 thang 10, cd biel cd dinh lu tie:u man vdo thdng 5.
Miia
can lugng ddng chdy chicm 20
den 30% ca nam, keo ddi 8, 9 thdng. cd khi len tdi
10
thdng trong nam, kiet nhat Id vdo
thdng 6. thang 7 [3].
Quang Binh ed 5 eon sdng ldn
Id
sdng Rdon, sdng Gianh, sdng Ly
Flda,
sdng
Dinh va sdng Nhat Le. Cac sdng d Qudng Binh gan vdi cdc boat dgng le hdi, dac biet Ic
hgi dua
thuven
tren sdng Nhat Le, sdng Gianh; du
tlui}'en
ngam trang nghe bdt hd
khoan Le Thuy cfing cd sire hdp ddn khdch du ljch.
Hd: Quang Binh ed nhieu hd, niurng ehi cd mdt sd hd cd phong cdnh de;p, cd khd
ndng khai thdc du Ijch sinh thdi, cheo thuyen, boi ldi nhu: An Ma,

ind
gan 500.000
in".
Trai vdi
sir
khan hiem cua
iiudc
tren mat d ven bien Quang Binh, ngudn
lurdc
ngdm d day lai khd phong
pbii
vd dn djnh. Muc
nude
ngam d chan cae cdn cat va cae
bai cat kha ndng, chi chung 30-40cm. Cac gieng dao cd rat nhieu nude, quanh nam
khdng can. nude ed chat hrgng tdt dugc dung cho sinh boat va san xuat. day
efuig
Id
ngudn nude nggt ddm bdo phuc vu khdch du ljch den nghi ngoi, tam bien.
2.5. Ve sinh vat:
Hien nay d Quang Binh tdng dien lieh ddt cd rirng chiem khoang 66,5% dien tich
tu nhien loan tinh. Trong dd rirng tu nhien
ehiidm
chirng 85%o. cdn
15%o
la rirng trdng
[5].
Vdi vj tri dja ly vd cac dieu kien tu nhic;n nhu tren thi Quang Binh dugc xem la
mdt phan
ciia

Thdm thuc vat tu nhic;n d day gdm rung Id rdng nhiet cldi am thudng xanh d dcd
cao dudi 800m, rirng Id rdng d nhiet ddi dm thudng xanh
tii'
do cao tir 800 den
1700m,
rung bdn giao dn dcdi dm d do cao tren
1
700in,
tren ddt cat cd rirng thdp vdi cay la cung
thich ung khd ban; vung ven bien ed rirng ngap man phan bd d edc cira sdng. Flien nay
dudi tac ddng khai pha
ciia
con ngudi cae loai rirng nguyen sinh da bj tan pha, thay the
vao dd la cac kieu rirng thir sinh nhu tre, nira, trdng ed
thii'
sinh, cay bui thir sinh, thuc
vat trdng nhu kia, boa mdu, rirng trdng, cay cdng nghiep, cay an qud Nhieu vung rirng
da bj khai tbdc can kiet bien thdnh ddt trdng ddi trgc.
Dae biet Qudng binh cdn lai mdt phdn rung nguyen sinh viing nui phia Tay, trong
dd Vudn Qudc gia Phong Nha - Ke Bdng la mdt trong nhfrng khu rirng nguyen sinh quy
hiem d Viet Nam cd he thdng ddng thuc vat da dang va ddc dao vdi nhieu ngudn gen
quy hiem. Vudn Qudc gia Phong Nha - Kc: Bang dirge cdng nhan la di san thien nhien
thi
gidi cd dien tich 85.754 ha,
did
che phu dat 93,8%), ed khoang
1103
loai thue vat vd
nhieu lodi ddng vat quy hiem. Ddy
Id

l.OOOin,
hiem trd chua cd vet chan ngudi la nai hap
din
cho cac nha
the
thao leo mii, du ljch mao hiem, kham pha.
Rirng nguyen sinh ed do
die
plui ldn. tinh da dang sinh hgc cao, phong
phii
ve
thuc vat, ddng vat vdi nhieu loai dae huu quy hiem; cdc ngudn sdng sudi cd phong canh
dep nhu Sudi Mgoe, sdng Chdy, rung Gdo, thdc Gid day la tiem nang ldn de phdt
triln cae tuyln du ljch sinh thdi, nghi ngoi, ngam cdnh, tan hudng khdng khi trong ldnh
cua thien nhien hoang da.
Cach Ddng
IkVi 60kin
ve phia nam
Id
sudi
nude
ndng Bang, Le Thiiy. Day Id
ngudn nude duy nhat d nude ta sdi d nhiet dcd 105 C. Ciing vdi viec nghi dudng, chua
benh, du ljch sinh thdi, sudi nirdc khoang Bang edn la ngudn
nude
khoang dugc khai
thac lam
nude
giai khdt cd gid trj.
Q phia tay cdn cd nggn nui dd vdi Than Dinh la no'i kha ddc dao, rirng d day cdn

ngdn cudi ludn.
Khu \
i,rc
Qtidnli
cdch Ddng
lidi
7km xe phia
ld_\'
cfiiig
Id
nidi
dja
diCiii
du Iich
sinh thdi ddc dao cua Quang Binh.
Dgc theo bd
bic:n
Quang Binh
Id
nhfrng bdi eat ddi. bang phang hinh thdnh
lu-n
nhieu bdi lam
dc;p
nlur:
Ly I
lod. Quang
Phii.
Nhdt Le. Bdo Ninh, Vd Ninh,
Ngir I
hu\.

Nlid\
Id
noi du ljch
nghi
mdt. tdm
bien
l\
tlui \di nludng bai da kic ndo cung cd sdng trdng.
Bdi
bidi
Nhdl Le. Quang Plui. Bdo Ninh
Id
mdt cum du Ijcb
bicii
thu luit khdch du
Iich
nelu
nt:c^'i.
lam bie;n trong
miia
he. Q ddy cd
Ihc
xdy dung cdc khu
ngin
dudng. dn
ljch sinh lluii.
\'iii
clioi giai tri,
the;
thao kc;l hgp gifra vimg ddi cdt.

III.
MOT SO DjNH HUONG PHAT TRIEN DU
LjCII
TREN
CO
SO
SU'
DUNG
HOP LY DIEU KIEN TU NHIEN VA TAI NGUYEN TINH QUANG
BINH.
Hidi lUi)
Qudng Binb da khai thdc, su dung mdl sd tiem ndng
lir iihie;n
de phdt
trie;!!
Du Ijch, mdt sd kbdc dang bat ddu khai thdc, cdn mdl phdn
tiCnn
an van chua dugc
khai thdc, tre;n
ihuc
le boat ddng Du ljch Qudng Binh van cdn chua tuang xung vdi tiem
ndng cua \img \d
lliic;ii bcii
vfrng | 1].
Du Hch (duang Binh
nidi
chi tap trung
a
Vudn Quoc Gia Phong Nha Ke Bdng
vd bien Nludl Lc;. Du khdch den Qudng Binh dui

ldng. mdt sd
dir
dn da duge khdi cdng xdy dung. Iugt
klidcli din
tham quan vd long
doanh thu tir cdc boat dgng du Iich ldng ldn. Ndm 2008 cd 670.000 Iugt khdch den
Quang Binh tdng 12% so vdi ndm 2007. trong do khdcb qudc le
Id
35.000
Itm'l
tdng
^•^^"^
Hdi ng-hi Khoa hgc Dia ly Todn qud'c
ldn th&S
- Hd Ndi, 2010
VIEN DIA Lt
•
VIEN KHOCN
VIET
NAM HGI DIA Lt VIET NAM
5l'";j
. long doanh thu cac
lioat di)ng
du licli dal 370
[y
dong. ldng
26"'o
so \ai ndm
2007
I 1

trong long the tai
ngi!)c:n
\a mdi
Irtnvng itr nliicin
eua ldnh thd.
Vie;c
l^hai
tbdc ldi
ngu)'en
du
lidi
dura gdn vcVi
\iee
gid giu. bao ve ngudn tdi
ngu\e;n
thidn nhien nhtr:
tha)'
tloi
dja hinh,
dial
phd
cd)
cdi, khai thdc rirng, Udng rua trdi \d xdi mdn ddt
\'dn
de d
nliic;ni
mdi trudng ddt, nude, khdng khi do xdy dtrng, rdc thai cua khdch du
lidi
cdn chua dugc xu ly
Iriel

lidi cT
(,)uang
Binh cdn dugc tiep luc nghien cuu mdl cdch todn dien. Vdn dc khai thac
ldi
ngii)e'n
du
lidi
phai di ddi \ cii \ ice sir dung hcrp ly ldi
ngu)cn
vd bao
\'c;
mdi
li'trevng.
phai ddt nd Irong ldng the; pluil trien cua nen kinh lc; \d trong be; thdng tdi
ngiuen
thien
nhicn, mdi
tru'cTiig
tinh Qudng Binh.
Mcdt sd djnh
liucVng
trong phat
triC'u
Du Iich Quang Binh de sir dung hop Iy ngudn
tai
iignycMi
thien nhien
\a
bao vc
nidi

ciim.
dicm
du ljch dc; cd mot
qu)'
hoach hop ly, Cdn
dui y
dcMi
he thdng
ihu
gom. xu I) rac. lurcic thai lai
tcrng
khu. luyen, didn du Iich.
2,
Clui trgng
vicic
ung
dimg
\d phdt trien cdng nghe; thong tin trong phdt trien du
Iich; xdy dting he llidng co' so'
did lieu
\e;
LIU
Iich: tao dieu
kien
dc; cdc lo cluic ca
nhdn
\d ldp
tin;
lluim gia nghien cuu \d ung dung lien bd khoa hgc cdng nghe; \do hoat dgng
du

si^r
nhin nhdn todn
diJii
\e
nlifing
tac Jong cua Ju ljch Jen ldi
ngti)en nioi
ti'irii'iig
\d'i
sir
tham
gi;i
cua cgng Jdng
CT
Jia phirang. cd nlui'iig
iliou dimh
phu hgp Jc
ban che; tdi Ja nludng tdc dgng lic:u
circ den
tdi ngu)en \d mdi irudng. nhdt la nhfrng noi
da dua \ do khai thac mdl
thdi
gian \a nludng khu
\
uc nha) cam \e moi trirong nlur:
Virdii
Qudc gia Phong Nha-Ke
Bang,
bien Nhdl
Lc;.

Co nludng
bieiii
phdp de ngdn chdn \ iec lieu
tlui
tdi ngu)en qua nuic \a han
dic
Hdi nghi Khoa hoc Dia iy Toan qudc
hiii tli&o
- Hd
Nedi,
2010 13S5
VIEN DIA Lt - VIEN KHOCN VIET NAM HOI DIA Lt VIET NAM
chdt thai
ciia
khach hdng. Ddng thai cd nhfrng bien phdp de kicm sodt dugc lugng chat
thdi tir boat dcdng du Ijch.
4.
Pbdl trien du Ijch gan
licSn
vdi bdo tdn cdc gia trj vc van hda. bdo ve cdnh quan,
Idn^
shep boat ddng du ljch vdo cac boat ddng
ciia
ccdng ddng dja phirong nhdt Id cdc
vung dan ldc il ngudi nhu: Vudn qudc gia Phong Nha-Kc; Bdng, Khu du ljch nghi
dudng sudi Bang; cac vimg ven bien Quang Phu, Da Nhdy, Vting Chiia, Ddo
Yin, nhdm
bao ve tinh da dang thien nhien. da dang sinh
thai,
da dang van hda.

mdt tinh cd nhieu
tiem nang ve tu nhien de pbdl trien du ljch, tdi nguyen du ljch Qudng Binh ndi cluing vd
tdi ngu)en du ljch Ur nhien Qudng Binh ndi rieng hien nay dting dugc tap trung khai
thdc de dua vdo su dung.
Hic:n
tai mdt sd tiem nang du Ijeh lu nhien Quang Binh da dugc khai thdc vd dua
vdo su dung nhu: Vudn Qudc gia Phong Nha-Ke Bang, bien Nhat Le, bien Quang Phu,
Viing
Chiia-Ddo
Yen, bien Bdo Ninh
di:u
la nhfrng noi nhay cdm ve mdi trudng. Q
day bang nam thu luit mdt lugng khdcb du ljch tuong ddi ddng va dang Id nhfrng khu
vuc chju tac ddng khdng nhd
ciia
cac boat dcdng du ljch. Tren thue te phdt trien cdc boat
ddng du ljch Qudng Binh van chua tuong xung vdi tiem nang
ciia
Quang Binh vd dang
cd nhieu ngu)' eo' dnh
liucdng
xdu den tdi nguyen, mdi trudng nlur: Ngudn chat thai tir
cac cdng trinh xay dung co' sd ha tang du ljch, tir nhd hang, khach san, khdch du Ijch;
Cac cdng trinh xay
dicing
ndy ciing cd nhung kha nang gay xdi
Id
d ven bien Nhdt Le:,
Quang Phil. Da Nhdy , khu vuc sudi Bang, Phong Nha-Ke Bang; dnh hudng den
ngudn nude; bien ddi da dang sinh bge, be sinh thdi

Irien Du
Iich
Quung Binh
2006-200H.
UBND linh Quang
Binh.
2.
Chuong Irinh phut Inen Du
Iich
Ouang Binh giui
doim
2006-2010.
UBND tmh
Quang Binh.
3.
Ky su Nguyen Dai. Bdo cdo "Thu
ihiip
vd chmh ly sd lieu khi luc/ng
iliiiy
vdn
Quung Binh lu num 1956 den num 2005". Tdi
Helm
hru trfr cua Trung
lain Dir
bao khi
tugng tluiy vdn Qudng Binh, nam 2006.
4.
Nghj Quylt vl Quy hocich
IcJng
thd phdt Iridn kinh

hgp diu chid vu khodng sun phuc vu quy hocich phcil trien kinh le vu bua ve mdi trudng
Qudng Binh ", Luu trfr tai Sd KH-CN Qudng Binh.
9. Website Qudng Binh.
hltp://\\\^\v.qtlall^binh.,^ov.vn.
Hoi nghi Klioa hgc Dia ly Toan
cjudc
lan
thd5 -
Ha.
Nidi ,
2010
i3S7