Gaya APA

(AP), J, W, T, M, C. (2012). Successfull Selling with Peak Performance (Cetakan Pertama, 2012). Jakarta: PT Elex Media Komputindo.

Gaya MLA

(AP), Jenu, Widjaja, Tandjung,, MM.,, CPM. "Successfull Selling with Peak Performance". Cetakan Pertama, 2012 Jakarta: PT Elex Media Komputindo, 2012. Text.