edited by Roger L. Peterson ... [and others]
The American Psychological Association, 1991
Buku Teks
American Psychological Association, {s.a}
Majalah, Jurnal, Buletin
Butcher, James N., author
Pearson, 2008
Buku Teks
Santrock, John W.
McGraw-Hill, 2003
Multimedia
Baron, Robert A., author
Simon & Schuster, 1992
Buku Teks