Leary, Mark R., author
Sage Publications, 1983
Buku Teks
William Damon, editor-in-chief
John Wiley & Sons, 1998
Buku Referensi
Bandura, Albert
Holt, Rinehart and Winston, 1963
Buku Teks
Cameron, Norman, author
Houghton Mifflin, 1963
Buku Teks
edited by Harry T. Reis and Charles M. Judd
Cambridge University Press, 2000
Buku Teks