APA (7th ed.) Citation

Kheong, F. H., Ramakrishnan, C., & Soon, G. K. (2005). Maths. Federal Publications.

Chicago Style (17th ed.) Citation

Kheong, Fong Ho, Chelvi Ramakrishnan, and Gan Kee Soon. Maths. Singapore: Federal Publications, 2005.

MLA (8th ed.) Citation

Kheong, Fong Ho, et al. Maths. Federal Publications, 2005.