Gaya APA
Cresswell, J, W., Fawaid, A.
(2010).
RESEARCH DESIGN
(
Indonesia)
.
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Cresswell, John, W.., Fawaid, Achmad.
"RESEARCH DESIGN".
Indonesia
Yogyakarta:
Pustaka Pelajar,
2010.
Text.