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 (8th ed.) CitationYeo, Beng Kong. Assessing ESL Writing Proficiency. Universiti Kebangsaan Malaysia, 1988.
Warning: These citations may not always be 100% accurate.