Gaya APA

Widjaja, D, D, H, S, S, A, W. (2005). Recent trends in marketing issues . Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Widjaja, Darmadi, Durianto,, Hendrawan, Supratikno,, Sugiarto,, Anton, Wachidin. "Recent trends in marketing issues". Jakarta: Gramedia Pustaka Utama, 2005. Text.