APA (7th ed.) Citation

Lau, A. (2019). An extortation problem. Warisan Kristal Enterprise.

Chicago Style (17th ed.) Citation

Lau, Alice. An Extortation Problem. Melaka: Warisan Kristal Enterprise, 2019.

MLA (9th ed.) Citation

Lau, Alice. An Extortation Problem. Warisan Kristal Enterprise, 2019.

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