Gaya APA
Cozby, P, C.
(2009).
Methods in behavioral research
(
cet. 1)
.
Yogyakarta:
pustaka pelajar.
Gaya MLA
Cozby, Paul, C..
"Methods in behavioral research".
cet. 1
Yogyakarta:
pustaka pelajar,
2009.
Text.