Yeo, B. K. (1988). Assessing ESL writing proficiency. Universiti Kebangsaan Malaysia.
Chicago Style (17th ed.) CitationYeo, Beng Kong. Assessing ESL Writing Proficiency. Bangi: Universiti Kebangsaan Malaysia, 1988.
MLA引文Yeo, Beng Kong. Assessing ESL Writing Proficiency. Universiti Kebangsaan Malaysia, 1988.
警告:这些引文格式不一定是100%准确.