Gaya APA
Nawawi, H., Martini, H.
(1994).
Penelitian Terapan
.
Yogyakarta:
Gajah Mada University Press.
Gaya MLA
Nawawi, H.Hadari., Martini, H.Mimi.
"Penelitian Terapan".
Yogyakarta:
Gajah Mada University Press,
1994.
Teks.