Gerner, Matthias (2013), A Grammar of Nuosu, Germany: De Gruyter, →ISBN, page 27.
李民[Li, Min]; 马明[Ma, Ming] (1981), “ꐩ”, in chapter 5, in 凉山彝语会话六百句 [600 Phrases in the Liangshan Yi Dialect][1] (in Chinese), Chengdu: 四川民族出版社 (Sichuan Nationality Publishing House), →ISBN, page 18.