Amdo Tibetan A Comprehensive Grammar Textbook : ở¿ở¿ở‍ở‍ ử·ở¿ử¿ử¿ửơử¿ửøở¿ử¿ở¿ửŒ¿̉¿ử¿ở‍ / - Sung, Kuo-ming. (Routledge,)