Gaya APA
Nawawi, H. et al (1992,2006).
Instrumen Penelitian Bidang Sosial (-).
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Nawawi, Hadari. et al.
"Instrumen Penelitian Bidang Sosial".
-
Yogyakarta:
Gadjah Mada University Press,
1992,2006.
Text.