Gaya APA

Orlich, D, C. et al (2010). Teaching Strategies : A Guide to Effective Instruction Ed. 9'th (9). USA: Wadsworth Cengage Learning.

Gaya MLA

Orlich, Donald, C.. et al. "Teaching Strategies : A Guide to Effective Instruction Ed. 9'th". 9 USA: Wadsworth Cengage Learning, 2010. Text.