Gaya APA

Hang, K, H., Wang, H. (2018). Solving problem in geometry : insights and strategies for mathematical Olympiad and competitions Vol.10 . Singapore: World Scientific Pub.

Gaya MLA

Hang, Kim, Hoo., Wang, Haibin. "Solving problem in geometry : insights and strategies for mathematical Olympiad and competitions Vol.10". Singapore: World Scientific Pub, 2018. Text.