Jirapan Udomkit. 2003. Communication anxiety for the basic signal officers in the English classroom at the Signal school. Field of Study Applied Linguistics, Mahidol University;
Jirapan Udomkit. (2003) Communication anxiety for the basic signal officers in the English classroom at the Signal school . Mahidol University/Bangkok.
Jirapan Udomkit. Communication anxiety for the basic signal officers in the English classroom at the Signal school. . Bangkok:Mahidol University, 2003.
Jirapan Udomkit. (2003) Communication anxiety for the basic signal officers in the English classroom at the Signal school . Mahidol University/Bangkok.