APA (7th ed.) Citation

Hwa, T. Y., Paul Lau, N. K., Liew, C. Y., & Lau, S. H. (2006). Successful mathematics problem solving using heuristics / Hwa Tee Yong … [et.al.].

Chicago Style (17th ed.) Citation

Hwa, Tee Yong, Ngee Kiong Paul Lau, Chin Ying Liew, and Sie Hoe Lau. Successful Mathematics Problem Solving Using Heuristics / Hwa Tee Yong … [et.al.]. 2006.

MLA (9th ed.) Citation

Hwa, Tee Yong, et al. Successful Mathematics Problem Solving Using Heuristics / Hwa Tee Yong … [et.al.]. 2006.