Bowersox, Donald J.
McGraw-Hill, 2002
Buku Teks SO
Bowersox, Donald J.
McGraw-Hill, 2010
Buku Teks SO
Donald J. Bowersox [and three others]
McGraw-Hill, 2013
Buku Teks SO
Christopher, Martin
Prentice-Hall, 2005
Buku Teks SO
edited by Donald Waters and Stephen Rinsler
Kogan Page Limited, 2014
Buku Teks SO