APA (7th ed.) Citation

William Koh Siaw Yen. (2006). Mathematics: Form 4. Sistem.

Chicago Style (17th ed.) Citation

William Koh Siaw Yen. Mathematics: Form 4. Selangor: Sistem, 2006.

MLA (9th ed.) Citation

William Koh Siaw Yen. Mathematics: Form 4. Sistem, 2006.

Warning: These citations may not always be 100% accurate.