Tra cứu

• Michaud, Jean (2006). Peoples of the Southeast Asian Massif. Scarecrow Press. tr. 21–. ISBN 978-0-8108-5466-6. 
• Pholsena, Vatthana (2006). Post-war Laos: The Politics of Culture, History, And Identity. Cornell University Press. tr. 41–. ISBN 978-0-8014-7320-3. 
• Tan, Andrew Tian Huat (2007). A Handbook of Terrorism and Insurgency in Southeast Asia. Edward Elgar Publishing. tr. 354–. ISBN 978-1-84542-543-2. 
• Ruud van Dijk biên tập (2008). Encyclopedia of the Cold War. Taylor & Francis US. tr. 532–. ISBN 978-0-415-97515-5. 
• Williams, Paul; Ladwig, Patrice (ngày 26 tháng 4 năm 2012). Buddhist Funeral Cultures of Southeast Asia and China. Cambridge University Press. tr. 100–. ISBN 978-1-107-00388-0. 

• Kingsadā, Thō̜ngphet, and Tadahiko Shintani. 1999 Basic Vocabularies of the Languages Spoken in Phongxaly, Lao P.D.R. Tokyo: Institute for the Study of Languages and Cultures of Asia and Africa (ILCAA).
• Shintani, Tadahiko, Ryuichi Kosaka, and Takashi Kato. 2001. Linguistic Survey of Phongxaly, Lao P.D.R. Tokyo: Institute for the Study of Languages and Cultures of Asia and Africa (ILCAA).
• Kato, Takashi. 2008. Linguistic Survey of Tibeto-Burman languages in Lao P.D.R. Tokyo: Institute for the Study of Languages and Cultures of Asia and Africa (ILCAA).