Gaya APA

Gwee, J. (2007). Positive business ideas: proven, practical and easy-to-apply ideas to improve your performance (1). Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Gwee, James. "Positive business ideas: proven, practical and easy-to-apply ideas to improve your performance". 1 Jakarta: Gramedia Pustaka Utama, 2007. Text.