Gaya APA
Nawawi, , H, H.
(2005).
Penelitian Terapan
(
1)
.
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Nawawi, , H., Hadari.
"Penelitian Terapan".
1
Yogyakarta:
Gadjah Mada University Press,
2005.
.