Ong, E. S. (1992). Case book. Universiti Kebangsaan Malaysia.
Chicago Style (17th ed.) CitationOng, Eng Sen. Case Book. Kuala Lumpur: Universiti Kebangsaan Malaysia, 1992.
MLA (8th ed.) CitationOng, Eng Sen. Case Book. Universiti Kebangsaan Malaysia, 1992.
Warning: These citations may not always be 100% accurate.