APA Citation

(2011). Why? Tenaga dan jirim. Selangor: Orbit Buku Sdn Bhd.

Chicago Style Citation

Why? Tenaga Dan Jirim. Selangor: Orbit Buku Sdn Bhd, 2011.

MLA Citation

Why? Tenaga Dan Jirim. Selangor: Orbit Buku Sdn Bhd, 2011.

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