Gaya APA
NAWAWI, H., HADARI, M, M. (2006).
Instrumen Penelitian Bidang Sosial .
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
NAWAWI, HADARI., HADARI, M., MARTINI.
"Instrumen Penelitian Bidang Sosial".
Yogyakarta:
Gadjah Mada University Press,
2006.
Text.