Guide to Isinay orthography. (2016). Complied by Lawrence A Reid and Analyn V. Salvador-Amores with Isinay speakers from Dupax del Sur, Aritao, and Bambang, Nueva Vizcaya. Baguio: Cordillera Studies Center, University of the Philippines Baguio.

Gai, Xingzhi 蓋興之, and Yan Wang 王豔. 2013. 堂郎語語音淺說. Cahiers de Linguistique Asie Orientale 42(2):163-177.

Zhou, Decai 周德才. 2004. A study of the Taliu language [他留話研究]. Kunming: 雲南民族出版社.

SHIRAI, Satoko. 2007. Evidentials and evidential-like categories in nDrapa. Linguistics of the Tibeto-Burman Area 30(2):125-151.

SHIRAI, Satoko. 2010. Perfect constructions with existential verbs in nDrapa. Himalayan Linguistics 9(1):101-122.

Gong, Qunhu 龔群虎. 2007. 扎巴語研究 A study of Zhaba. Beijing: The Ethnic Publishing House 民族出版社.

Li, Daqin 李大勤, and Jiang Di 江荻. 2001. 扎語概況 [An brief intro to the Zha language]. 民族語文 Minority Languages of China 2001(6): 61-75.

Landi, Victor. 2005. The Meyors and their language. Itanagar: Directorate of Research, Government of Arunachal Pradesh. 182pp.

Lu, Shaozun 陸紹尊. 2001. 普米語方言研究 [A study of the Pumi dialects]. Beijing: The Ethnic Publishing House (民族出版社).

Bai, Bibo 白碧波. 2012. 撒都語研究 [A study of Sadu]. Beijing: The Ethnic Publishing House (民族出版社).