Citations Sources Guójiā cèhuìjú dìmíng yánjiūsuǒ 国家测绘局地名研究所 (Institute for Place Names of the State Survey Bureau; ed.). Zhōngguó dìmínglù 中国地名录 / Gazetteer of China. (Beijing, SinoMaps Press 中国地图出版社 1997); . Contains official spellings for place names. Zàngwén Pīnyīn Jiàocái – Lāsàyīn 藏文拼音教材•拉萨音 / bod yig gi sgra sbyor slob deb, lha sa'i skad (Course in the Pöyig Kigajor of Lhasa dialect; Běijīng 北京, Mínzú chūbǎnshè 民族出版社 1983), . Pöyig Kigajor (ZWPY) is a modified version of the official transcription "Tibetan pinyin" (ZYPY), with tone letters. Wylie, Turrell: A Standard System of Tibetan Transcription In: Harvard Journal of Asiatic Studies 1959, p. 261-267. David Germano, Nicolas Tournadre: THL Simplified Phonetic Transcription of Standard Tibetan (Tibetan & Himalayan Library, December 12, 2003). The Transliteration and Transcription of Tibetan (Tibetan & Himalayan Library) Romanization of Tibetan Geographical Names – UNGEGN Romanization of Tibetan Pinyin