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