Chalong Eam-Eium. 1986. A Phonological description of Phuan at Tambon Hat Siaw Si Satchanalai district Sukhothai province. , Mahidol University;
Chalong Eam-Eium. (1986) A Phonological description of Phuan at Tambon Hat Siaw Si Satchanalai district Sukhothai province . Mahidol University/Bangkok.
Chalong Eam-Eium. A Phonological description of Phuan at Tambon Hat Siaw Si Satchanalai district Sukhothai province. . Bangkok:Mahidol University, 1986.
Chalong Eam-Eium. (1986) A Phonological description of Phuan at Tambon Hat Siaw Si Satchanalai district Sukhothai province . Mahidol University/Bangkok.