Gaya APA

Schunk, D, H. et al (2008). Motivation in Education: theory, reserach, and application third edition (third edition). New Jersey: Pearson Education, Inc..

Gaya MLA

Schunk, Dale, H.. et al. "Motivation in Education: theory, reserach, and application third edition". third edition New Jersey: Pearson Education, Inc., 2008. MP.