APA
Yaowalak Yim-On, Bangkok University, . (2001). English phonetics and phonology. Bangkok: Texts and Instructional Materials Department, The Univ.
Chicago
Yaowalak Yim-On, Bangkok University, . 2001. English phonetics and phonology. Bangkok: Texts and Instructional Materials Department, The Univ.
Harvard
Yaowalak Yim-On, Bangkok University, . (2001). English phonetics and phonology. Bangkok: Texts and Instructional Materials Department, The Univ.
MLA
Yaowalak Yim-On, Bangkok University, . English phonetics and phonology. Bangkok: Texts and Instructional Materials Department, The Univ. 2001.