Gaya APA

Kerlinger, F, N. (2014). Asas-asas penelitian bahavioral (Cet.12). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Kerlinger, Freed, N.. "Asas-asas penelitian bahavioral". Cet.12 Yogyakarta: Gadjah Mada University Press, 2014. Text.