Papalia, Diane E., author
Boston, 2007
Buku Teks
Santrock, John W., author
Wm. C. Brown Publishers, 1985
Buku Teks
Hoyer, William J., author
McGraw-Hill, 2003
Buku Teks
by Diana E. Papalia ... [et al.]
McGraw-Hill, 2002
Buku Teks
Robinson, Paul W., 1942-
Prentice-Hall, 1981
Buku Teks