United Nations. Office on drugs and crime. (2003). Ethnic minorities, drug use and harm in the highlands of Northern Vietnam: A contextual analysis of the situation in six communes from Son La, Lai Chau, and Lao Cai. Hà Nội: Nxb.Thế giới.
শিকাগো স্টাইলে সাইটেশনUnited Nations. Office on drugs and crime. Ethnic Minorities, Drug Use and Harm in the Highlands of Northern Vietnam: A Contextual Analysis of the Situation in Six Communes From Son La, Lai Chau, and Lao Cai. Hà Nội: Nxb.Thế giới, 2003.
এমএলএ সাইটেশনUnited Nations. Office on drugs and crime. Ethnic Minorities, Drug Use and Harm in the Highlands of Northern Vietnam: A Contextual Analysis of the Situation in Six Communes From Son La, Lai Chau, and Lao Cai. Hà Nội: Nxb.Thế giới, 2003.