USMAN Haji Yaakob. (1989). Prinsip kajian kependudukan. DBP.
Chicago Style (17th ed.) CitationUSMAN Haji Yaakob. Prinsip Kajian Kependudukan. Kuala Lumpur: DBP, 1989.
MLA (8th ed.) CitationUSMAN Haji Yaakob. Prinsip Kajian Kependudukan. DBP, 1989.
Warning: These citations may not always be 100% accurate.