Ferguson, George Andrew, author
McGraw-Hill, 1987
Buku Teks
Snowman, Jack, author
Wadsworth and Cengage Learning, 2012
Buku Teks
edited by Neil J. Salkind
Sage, 2011
Buku Teks
edited by Kathleen M. Cauley and Gina M. Pannozzo
McGraw-Hill, 2013
Buku Teks
Woolfolk, Anita E., author
Allyn and Bacon , 1995
Buku Teks