APA (7th ed.) Citation

Cho Young Sun, Noor Shahariza Nordin, & Rahmad Amin Abdul Hamid. (2011). Why?Tenaga dan jirim. YeaRimDang Publishing Co. Ltd..

Chicago Style (17th ed.) Citation

Cho Young Sun, Noor Shahariza Nordin, and Rahmad Amin Abdul Hamid. Why?Tenaga Dan Jirim. Korea: YeaRimDang Publishing Co. Ltd., 2011.

MLA (9th ed.) Citation

Cho Young Sun, et al. Why?Tenaga Dan Jirim. YeaRimDang Publishing Co. Ltd., 2011.

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