found: Ethnologue, 1996(Bouyei (Buyi, Bui, Bo-i, Buyei, Buyui, Puyi, Pui, Pu-i, Pu-jui, Pujai, Puyoi, Dioi, Zhongjia) Daic, Tai, Northern; also Buyi, alt. for Buyu, Congo)
found: Encyc. world cultures:v. 6, p. 422 (Bouyei: language belongs to Zhuang-Dong branch of Sino-Tibetan family)
found: 90-86277: Gedney, W. Yay language, 1991:p. xvi (Yay often referred to as Nhang or Nyang; official name in Vietnamese is Giay)
found: Intl. encyc. of ling., 1992:v. 4, p. 130 (Nhang, also called Nyang, Yay, Giai, Giang, Dioi)
found: Ruhlen, M. Guide to world's lang., 1987:p. 337 (Nhang; also separate listings for Giay and Yay)
found: Tai festschrift for William J. Gednay, 1975:p. 150 (Yay; identical with Giay language; related to, but not identical with Dioi)
found: Voegelin lang.:pp. 195-196 (Lists Giay, Nhang, and Yay separately)
found: Joshua Project Web site, Nov. 22, 2006(Language name: Bouyei. Alternate names: Giáy, Nyang, Buyi, Nhaang, Pu-I, Bo-I, Giang, Giai, Tujia, Chang Chá, Pú Nà, Niang, Bui, Pu-Jui, Chung-Chia, Shuihu, Cùi Chu, Dang, Trong Ggia, Chung Cha, Yay, Pujai, Buyei, Buyui, Pui, Puyi, Xa Chung Chá, Pau Thin, Dioi, Tu-Dìn, Yai, Bouyei, Puyoi, Sa, Bo-Y, Pu-Nam, Zhongjia. Countries: China. Family: Northern)
found: Ethnologue Web site, Nov. 21, 2006(Bouyei, a language of China. Alternate names: Buyi, Bui, Bo-I, Buyei, Buyui, Puyi, Pui, Pu-I, Pu-Jui, Pujai, Puyoi, Dioi, Tujia, Shuihu, Zhongjia, Chung-Chia. Classification: Tai-Kadai, Kam-Tai, Be-Tai, Tai-Sek, Tai, Northern. Also spoken in Viet Nam, language name: Giáy, alternate names: Bouyei, Bo-Y, Bo-I, Buyi, Pu-I, Puyi, Pui, Chang Chá, Trong Ggia, Tu-Dìn, Nhaang, Nyang, Niang, Yai, Yay, Giai, Giang, Dang, Dioi, Pau Thin, Pú Nà, Pu-Nam, Cùi Chu, Xa Chung Chá, Chung Cha, Sa)
found: Antioch Missions - Chinese Church Support Ministries Web site, Dec. 11, 2006:about nationalities/others/Bouyei (The Bouyei are the tenth largest of China's minorities, numbering approximately three million people. In Vietnam, 38,000 members of the Giay minority and 1,420 in the Bo Y minority speak the same language as the Bouyei in China; Bouyei--which has eight tones--is a Northern Tai language, similar (and in some places identical) to Northern Zhuang)
