Craig Haen, editor
Routledge, 2011
Buku Teks
Whitaker, Carl A.
The Blakiston Company, 1953
Buku Teks
Corsini, Raymond J.
John Wiley & Sons, 1981
Buku Teks
Bateman, Anthony
Brunner-Routledge, 2003
Buku Teks
Vicki Smith, Patrizia Collard, Paula Nicolson, Rowan Bayne
Mc Graw-Hill, 2012
Buku Teks