1. Banker, John E., ‘Preglottalized consonants in languages of South East Asia’ Unpublished manuscript. Saigon, Viet Nam.
2. Proto-Vietnamuong initial labial consonants;Barker;Vǎn-Hóa Nguyět San,1963
3. Vietnamese-Muong tone correspondences;Barker,1966
4. The phonemes of Muong;Barker;Studies in Linguistics,1968