Gaya APA
Nawawi, H, H.
(2007).
Metode penelitian bidang sosial
.
Gorontalo:
Gadjah Mada University Press.
Gaya MLA
Nawawi, H., Hadari.
"Metode penelitian bidang sosial".
Gorontalo:
Gadjah Mada University Press,
2007.
Text.