Gaya APA
Nasution, M, Q., Usman, H.
(2007).
Proses Penelitian Kuantitatif
(
-2)
.
Depok:
Fak.Ekonomi UI.
Gaya MLA
Nasution, Mustafa, Qdwin., Usman, Hardius.
"Proses Penelitian Kuantitatif".
-2
Depok:
Fak.Ekonomi UI,
2007.
Text.