Gaya APA

Kerlinger, F, N., Simatupang, L, R. (1990). Asas-asas penelitian behavioral (3rd ed. Cet.11). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Kerlinger, Fred, N.., Simatupang, Landung, R.. "Asas-asas penelitian behavioral". 3rd ed. Cet.11 Yogyakarta: Gadjah Mada University Press, 1990. Text.