Gaya APA
Cooperative Learning. (2012).
:
Pustaka pelajar.
Gaya Chicago
Cooperative Learning.
cet.2.
:
Pustaka pelajar,
2012.
.
Gaya MLA
Cooperative Learning.
cet.2.
:
Pustaka pelajar,
2012.
.
Gaya Turabian
Cooperative Learning.
:
Pustaka pelajar,
2012.
.