Petri, Herbert L
Motivation : theory, research and application
Cengage Learning, 2013
 Buku Teks
Schunk, Dale H.
Motivation in education: theory, research, and applications
Prentice-Hall, 1996
 Buku Teks
Schunk, Dale H.
Motivation in education : theory, research, and applications
Pearson Education, 2010
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Motivation and Self-Regulated Learning: Theory, Research, and Applications
editor, Dale H. Schunk, Barry J. Zimmerman
Routledge, 2012
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The Iraqi revolution : one year of progress and achivement
[publisher not identified], [date of publication not identified]
 Buku Teks