Gaya APA
Siddiqui, A, M, A, H., Ushiyana, M. (1992).
Occupational Skill Standards, Testing and Certification:A Review .
Bangkok:
APSDEP.
Gaya MLA
Siddiqui, A., M., A., H.., Ushiyana, M..
"Occupational Skill Standards, Testing and Certification:A Review".
Bangkok:
APSDEP,
1992.
Textbook.