Cavanaugh, John C., author
Wadsworth , 2011
Buku Teks
Papalia, Diane E., author
Boston, 2007
Buku Teks
Santrock, John W., author
Wm. C. Brown Publishers, 1985
Buku Teks
by Diane E. Papalia ... [et al]
McGraw-Hill, 2007
Buku Teks
Cavanaugh, John C., author
Cengage Learning, cop, 2015
Buku Teks