edited by Eileen E. Morrison, Beth Furlong
Jones & Bartlett Learning, 2014
Buku Teks
Counte, Michael A., author
Westview Press, 1981
Buku Teks
Malerba, Larry, author
North Atlantic Books, 2010
Buku Teks
Brown, Brian, author
Open University Press, 2003
Buku Teks
Sarafino, Edward P., author
John Wiley & Son, 2012
Buku Teks