Gaya APA
Sujarweni, W.
(2015).
Metodologi penelitian: bisnis & ekonomi
.
Yogyakarta:
PT.Pustaka Baru.
Gaya MLA
Sujarweni, Wiratna.
"Metodologi penelitian: bisnis & ekonomi".
Yogyakarta:
PT.Pustaka Baru,
2015.
UMUM.