APA (7th ed.) Citation

Muhammad Umar. (2007). Bencana Alam. Pustaka Prinsip Sdn Bhd.

Chicago Style (17th ed.) Citation

Muhammad Umar. Bencana Alam. Kuala Lumpur: Pustaka Prinsip Sdn Bhd, 2007.

MLA (9th ed.) Citation

Muhammad Umar. Bencana Alam. Pustaka Prinsip Sdn Bhd, 2007.

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