Gaya APA
Priyatna,Andri. (2010).
Focus On Children ! .
Jakarta:
Elex Media.
Gaya Chicago
Priyatna,Andri.
Focus On Children !.
Jakarta:
Elex Media,
2010.
Text.
Gaya MLA
Priyatna,Andri.
Focus On Children !.
Jakarta:
Elex Media,
2010.
Text.
Gaya Turabian
Priyatna,Andri.
Focus On Children !.
Jakarta:
Elex Media,
2010.
Print.