Gaya APA

Nawawi, H., Hadari, H. (1997). Instrumen penelitian bidang sosial . Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Nawawi, H., Hadari, H.. Instrumen penelitian bidang sosial. Yogyakarta: Gadjah Mada University Press, 1997. Text.