Gaya APA
Cooperative Learning. (2010).
Bandung:
Alfabeta.
Gaya Chicago
Cooperative Learning.
Cet.4.
Bandung:
Alfabeta,
2010.
.
Gaya MLA
Cooperative Learning.
Cet.4.
Bandung:
Alfabeta,
2010.
.
Gaya Turabian
Cooperative Learning.
Bandung:
Alfabeta,
2010.
.