Gaya APA

Lie, M., Sanjaya, L. (2007). Easy Conversation For Business Travelling (Cet. 1). Jakarta: Pustaka Widyatama.

Gaya MLA

Lie, Maureen., Sanjaya, Lukman. "Easy Conversation For Business Travelling". Cet. 1 Jakarta: Pustaka Widyatama, 2007. Text.