Hye, Gyeong-Gung, author
Beomusa, 2007
Buku Teks
Santrock, John W.
McGraw-Hill, 2003
Multimedia
Burton, Lorelle, author
John Wiley & Sons Australia, 2009
Buku Teks
Baron, Robert A., author
Simon & Schuster, 1992
Buku Teks
Gray, Peter, author
Worth Publishers, 1999
Buku Teks