APA (7th ed.) Citation

Yap Chee Keong & Leong, P. (2006). Don't look down. Express Education Sdn Bhd.

Chicago Style (17th ed.) Citation

Yap Chee Keong and P.K Leong. Don't Look Down. Selangor: Express Education Sdn Bhd, 2006.

MLA (9th ed.) Citation

Yap Chee Keong and P.K Leong. Don't Look Down. Express Education Sdn Bhd, 2006.