Gaya APA

kerlinger, F, N. (2002). Asas-Asas Penelitian Behavioral (3). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

kerlinger, Fred, N.. "Asas-Asas Penelitian Behavioral ". 3 Yogyakarta: Gadjah Mada University Press, 2002. Text.