Prapai Ninlapan. 1993. Expressives in Pattani Malay. Faculty of Graduate Studies, Mahidol University;
Prapai Ninlapan. (1993) Expressives in Pattani Malay . Mahidol University/Bangkok.
Prapai Ninlapan. Expressives in Pattani Malay. . Bangkok:Mahidol University, 1993.
Prapai Ninlapan. (1993) Expressives in Pattani Malay . Mahidol University/Bangkok.