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According to Li (2006:340), there are fewer than 1,000 speakers living on the slopes of the "Kongge" Mountain ("控格山") in Na Huipa village (纳回帕村), Mengyang township (勐养镇), Jinghong (景洪市, a county-level city).
Hu speakers call themselves the xuʔ55, and the local Dai peoples call them the "black people" (黑人), as well as xɔn55 kɤt35, meaning 'surviving souls'. They are also known locally as the Kunge people (昆格人) or Kongge people (控格人).
Li, Jinfang 李锦芳 (2006). Xīnán dìqū bīnwēi yǔyán diàochá yánjiū 西南地区濒危语言调查研究 [Studies on Endangered Languages in the Southwest China] (in Chinese). Beijing: Zhongyang minzu daxue chubanshe.
Svantesson, Jan-Olof (1991). "Hu – a Language with Unorthodox Tonogenesis". In Davidson, Jeremy H.C.S. (ed.). Austroasiatic Languages: Essays in Honour of H. L. Shorto (PDF). London: School of Oriental and African Studies, University of London. pp. 67–80.
Yan, Qixiang 颜其香; Zhou, Zhizhi 周植志 (2012). Zhōngguó Mèng-Gāomián yǔzú yǔyán yǔ Nányǎ yǔxì 中国孟高棉语族语言与南亚语系 [Mon-Khmer Languages of China and the Austroasiatic Family]. Beijing: Shehui kexue wenxian chubanshe. ISBN978-7-5097-2860-4.