Classification
- WALS
- TK > Kam Tai
- Glottolog
- Tai Kadai > Kam Tai > Kam Sui > Mulam Kam
- Ethnologue
- Kra Dai > Kam Tai > Kam Sui
Sources
- Deng and Wang 2009
- 中國的語言及方言的分類 (Classification of the languages and dialects of China). Beijing: Zhonghua Shuju (中華書局).