Gaya APA
Instructional Systems. ().
California:
Fearon Publishers.
Gaya Chicago
Instructional Systems.
.
California:
Fearon Publishers,
.
.
Gaya MLA
Instructional Systems.
.
California:
Fearon Publishers,
.
.
Gaya Turabian
Instructional Systems.
California:
Fearon Publishers,
.
.