Brammer, Lawrence M., author
Prentice-Hall, 1982
Buku Teks
Neukrug, Edward S., author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Sharf, Richard S., author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Claringbull, Norman, author
Learning Matters, 2011
Buku Teks
edited by H. Thompson Prout, Douglas T. Brown
John Wiley & Sons, 2007
Buku Teks