Classification
- WALS
- TK > Kam Tai
- Glottolog
- Tai Kadai > Kam Tai > Daic Beic > Daic > Northerndaic Sek > Northerndaic
- Ethnologue
- Kra Dai > Kam Tai > Tai > Central
Sources
- Hudak 2008
- William J. Gedney's comparative Tai source book. Honolulu: University of Hawai'i Press.