Gaya APA
Learning and Instruction. (2013).
Jakarta:
.
Gaya Chicago
Learning and Instruction.
Ed.6, Cet.2.
Jakarta:
,
2013.
.
Gaya MLA
Learning and Instruction.
Ed.6, Cet.2.
Jakarta:
,
2013.
.
Gaya Turabian
Learning and Instruction.
Jakarta:
,
2013.
.