Orawan Mekkamol. 2001. Towards developing an instructional material to improve the spoken English of Thai college students. , Central Luzon State University;
Orawan Mekkamol. (2001) Towards developing an instructional material to improve the spoken English of Thai college students . Central Luzon State University/Munoz.
Orawan Mekkamol. Towards developing an instructional material to improve the spoken English of Thai college students. . Munoz:Central Luzon State University, 2001.
Orawan Mekkamol. (2001) Towards developing an instructional material to improve the spoken English of Thai college students . Central Luzon State University/Munoz.