LeBar, Frank M. (1972). "Kenyah-Kayan-Kajang." In Ethnic Groups of Insular Southeast Asia, edited by Frank M. LeBar. Vol. 1, Indonesia, Andaman Islands, and Madagascar, 168173. New Haven: HRAF Press.
Sagan, Jacob Dungau (1989). "The Kenyah People of Sarawak." Sarawak Museum Journal 40:119-141.
Uyo, Lah Jau (1989). "Kayan People of Sarawak." Sarawak Museum Journal 40:56-88.