Võ, T. S. (1996). Hệ thống thông tin địa lý: Post-graduate training course on environmental mangement and impact assessment HaNoi, Dec.1995-Sep.1996. Hà Nội.
শিকাগো স্টাইলে সাইটেশনVõ, Thanh Sơn. Hệ Thống Thông Tin địa Lý: Post-graduate Training Course On Environmental Mangement and Impact Assessment HaNoi, Dec.1995-Sep.1996. Hà Nội, 1996.
এমএলএ সাইটেশনVõ, Thanh Sơn. Hệ Thống Thông Tin địa Lý: Post-graduate Training Course On Environmental Mangement and Impact Assessment HaNoi, Dec.1995-Sep.1996. Hà Nội, 1996.
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