1. Li, L.: Xinan Guanhua de fenqu [Classification/distribution of Southwestern Mandarin]. Dialects 1, 72–87 (2009). (in Chinese)
2. Chen, Y.: Lianxixiang yuanze yu li de dingyu biaoji zuoyong [Relator principle and li (里) as an attributive marker]. Studies in Language and Linguistics 27(3), 69–75 (2007). (in Chinese)
3. Liang, D., Huang, S.: Chengdu Fangyan Cidian [A Dictionary of the Chengdu Dialect]. Jiangsu Education Publishing House, Nanjing (2007). (in Chinese)
4. Chao, Y.R.: A Grammar of Spoken Chinese. University of California Press, Berkeley (1968)
5. Liu, D.: Yufa Diaocha Yanjiu Shouce [A Handbook for Grammatical Investigation and Research]. Shanghai Educational Publishing House, Shanghai (2008). (in Chinese)