Tài liệu
Theraphan L. Thongkum. (1984). Nyah Kur (Chao bon)–Thai–English dictionary. Monic language studies, vol. 2. Bangkok, Thailand: Chulalongkorn University Printing House. ISBN 974-563-785-8
Memanas, Payau (1979). A description of Chaobon: an Austroasiatic language in Thailand. Mahidol University MA thesis.