APA (7th ed.) Citation

Othman, M., & Sulaiman, N. Pencemaran udara, air dan bunyi. Penerbit Universiti Putra Malaysia.

Chicago Style (17th ed.) Citation

Othman, Mumtazah, and Norhasmah Sulaiman. Pencemaran Udara, Air Dan Bunyi. Penerbit Universiti Putra Malaysia.

MLA (9th ed.) Citation

Othman, Mumtazah, and Norhasmah Sulaiman. Pencemaran Udara, Air Dan Bunyi. Penerbit Universiti Putra Malaysia.

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