Ab. Aziz Yusof & Mohd Hizam Hanafiah. (2003). Prinsip keusahawanan. Prentice Hall Malaysia.
Chicago Style (17th ed.) CitationAb. Aziz Yusof and Mohd Hizam Hanafiah. Prinsip Keusahawanan. Selangor: Prentice Hall Malaysia, 2003.
MLA (8th ed.) CitationAb. Aziz Yusof and Mohd Hizam Hanafiah. Prinsip Keusahawanan. Prentice Hall Malaysia, 2003.
Warning: These citations may not always be 100% accurate.