Gaya APA
Behavior Modification. (2004).
USA:
Thomson Learning Inc..
Gaya Chicago
Behavior Modification.
.
USA:
Thomson Learning Inc.,
2004.
Buku.
Gaya MLA
Behavior Modification.
.
USA:
Thomson Learning Inc.,
2004.
Buku.
Gaya Turabian
Behavior Modification.
USA:
Thomson Learning Inc.,
2004.
Buku.