Shefts-Chang, Betty. 1971. The Tibetan Causative: Phonology. Bulletin of the Institute of History and Philology 42. 623-765.
@article{jacquesestimative-shefts1971causative, author = {Shefts-Chang, Betty}, journal = {Bulletin of the Institute of History and Philology}, number = {4}, pages = {623-765}, title = {The Tibetan Causative: Phonology}, volume = {42}, year = {1971} }