Comer, Ronald, author
John Wiley & sons Inc , 2013
Buku Teks
Myers, David G., author
Worth Publishers, 2015
Buku Teks
Santrock, John W., author
McGraw-Hill, 2005
Buku Teks
Huffman, Karen, author
John Wiley & Sons, 1997
Buku Teks
Passer, Michael W., author
McGraw-Hill, 2007
Buku Teks