Gaya APA

Foster, D, L., Satrio, T, B. (2000). Sales and marketing for the travel professionl. Bah. Indonesia (1. Ed.). Jakarta: Raja Grafindo Persada.

Gaya MLA

Foster, Dennis, L., Satrio, Tri, Budhi. "Sales and marketing for the travel professionl. Bah. Indonesia". 1. Ed. Jakarta: Raja Grafindo Persada, 2000. Text.