Gaya APA

Wekke, I, S., Brew, A. (2016). Hakekat karya ilmiah (The nature of research) . Yogyakarta: Deepublish.

Gaya MLA

Wekke, Ismail, Suardi., Brew, Angela. "Hakekat karya ilmiah (The nature of research)". Yogyakarta: Deepublish, 2016. Text.