Gaya APA
CTL( Contextual teaching & learning). (2011).
Jakarta:
Kaifa.
Gaya Chicago
CTL( Contextual teaching & learning).
Ed.Baru, Cet.3.
Jakarta:
Kaifa,
2011.
.
Gaya MLA
CTL( Contextual teaching & learning).
Ed.Baru, Cet.3.
Jakarta:
Kaifa,
2011.
.
Gaya Turabian
CTL( Contextual teaching & learning).
Jakarta:
Kaifa,
2011.
.