1 2 Daniels, Peter T. and William Bright. The World’s Writing Systems. New York: Oxford University Press, 1996.
↑ Which specific Indic script inspired the Tibetan alphabet remains controversial. Recent study suggests Tibetan script was based on an adaption from Khotan of the Indian Brahmi and Gupta scripts taught to Thonmi Sambhota in Kashmir (Berzin, Alexander. A Survey of Tibetan History - Reading Notes Taken by Alexander Berzin from Tsepon, W. D. Shakabpa, Tibet: A Political History. New Haven, Yale University Press, 1967: http://studybuddhism.com/web/en/archives/e-books/unpublished_manuscripts/survey_tibetan_history/chapter_1.html).
