APA (7th ed.) Citation

B.H.Guan. (2008). The Exam Companion Science SPM. Pustaka Sistem Pelajaran sdn.Bhd..

Chicago Style (17th ed.) Citation

B.H.Guan. The Exam Companion Science SPM. Selangor: Pustaka Sistem Pelajaran sdn.Bhd., 2008.

MLA (9th ed.) Citation

B.H.Guan. The Exam Companion Science SPM. Pustaka Sistem Pelajaran sdn.Bhd., 2008.

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