Gaya APA

Tandjung, J, W., Tan, D. (2012). Successful Selling with Peak Performance: 18 tip mempertahankan mental dan fisik salesman dan sales supervisor (cet. 1). Jakarta: PT Elex Media Komputindo.

Gaya MLA

Tandjung, Jenu, Widjaja., Tan, Dominicus. "Successful Selling with Peak Performance: 18 tip mempertahankan mental dan fisik salesman dan sales supervisor". cet. 1 Jakarta: PT Elex Media Komputindo, 2012. Text.