edited by, Wayne B. Jonas, Cindy C. Crawford
Churchill Livingstone, 2003
Buku Teks
Johnson, Janet Buttolph, 1950-, author
CQ Press, 2012
Buku Teks
edited by Willow J.H. Liu
John Wiley & Sons, Hoboken, N.J., 2011
Buku Teks
Jonathan Berger, Gabe Turow, editor
Routledge, 2011
Buku Teks
Barker, Chris, author
John Wiley & Sons, 1994
Buku Teks