Gaya APA
Nawawi, H.
(1995).
Instrumen Penelitian Bidang Sosial
(
1)
.
Yogyakarta:
Gajah Mada University Press.
Gaya MLA
Nawawi, Hadari.
"Instrumen Penelitian Bidang Sosial".
1
Yogyakarta:
Gajah Mada University Press,
1995.
Text.