1. Xumi (part 2): Upper Xumi, the variety of the upper reaches of the Shuiluo river
2. Evans Jonathan . 2009. Types of tone culminativity in languages of Sichuan and elsewhere. Ms., Institute of Linguistics, Academia Sinica, Taiwan. [http://www.ling.sinica.edu.tw/eip/FILES/publish/2009.4.30.24511354.9165533.pdf]
3. Büeler Franziska . 2010. Ethnobotanical study among ethnic groups in the Shuiluo valley, Southwest China: Local knowledge of ritual plant use. MA dissertation, Department of Geography, University of Zürich.
4. Lun Zang-Mian yuzu zhong de Qiang yuzhi yuyan [On the Qiangic branch of the Tibeto-Burman language family];Hongkai;Language and Linguistics,2001