KERLINGER, F. N., & KOESOEMANTO, H. [. (2006). Asas-asas penelitian behavioral (Ed.3.). Gadjah Mada University Press.
Lua i Stíl Chicago (17ú heag.)KERLINGER, Fred N., agus H.J. [ed.] KOESOEMANTO. Asas-asas Penelitian Behavioral. Ed.3. Yogyakarta: Gadjah Mada University Press, 2006.
Lua MLA (9ú heag.)KERLINGER, Fred N., agus H.J. [ed.] KOESOEMANTO. Asas-asas Penelitian Behavioral. Ed.3. Gadjah Mada University Press, 2006.
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