Christopher, Martin
Prentice-Hall, 2005
Buku Teks
Bowersox, Donald J.
McGraw-Hill, 2010
Buku Teks
Bowersox, Donald J.
McGraw-Hill, 2002
Buku Teks
Springer Cham, 2019
eBooks
edited by Donald Waters and Stephen Rinsler
Kogan Page Limited, 2014
Buku Teks