| | Dạng tài liệu: | Tư liệu ngôn ngữ (Sách) |  | Thông tin mô tả: | Trieu, Thi Hong Hanh Some aspects of environmental lease for ecottourism business in Cat Ba national park, Hai Phong city,VietNam / Trieu, Thi Hong Hanh; Supervisor: Pham Van Dien
 Hanoi, 2014
 32 p. :  Appendix ;  30 cm
 
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