Gaya APA
co-opera tive learn-ing. (2002).
:
PT.GRAMEDIA,JAKARTA.
Gaya Chicago
co-opera tive learn-ing.
.
:
PT.GRAMEDIA,JAKARTA,
2002.
Non Fiksi.
Gaya MLA
co-opera tive learn-ing.
.
:
PT.GRAMEDIA,JAKARTA,
2002.
Non Fiksi.
Gaya Turabian
co-opera tive learn-ing.
:
PT.GRAMEDIA,JAKARTA,
2002.
Non Fiksi.