KERLINGER, F. N. (2006). Asas-Asas Penelitian Behavioral / Fred N. Kerlinger. Yogyakarta: Gajah Mada University Press.
Lua i Stíl Chicago (17ú heag.)KERLINGER, Fred N. Asas-Asas Penelitian Behavioral / Fred N. Kerlinger. Yogyakarta: Gajah Mada University Press, 2006.
Lua MLA (8ú heag.)KERLINGER, Fred N. Asas-Asas Penelitian Behavioral / Fred N. Kerlinger. Yogyakarta: Gajah Mada University Press, 2006.
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