Gaya APA
Nawawi, H., Martini, M.
(1996).
Penelitian terapan
.
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Nawawi, Hadari., Martini, Mimi.
"Penelitian terapan".
Yogyakarta:
Gadjah Mada University Press,
1996.
Text.