Gulf Puslishing, 1964
Buku Teks
Kraemer, Sieverts & Partners ; English translation by James L. Ritchie
McGraw-Hill , 1977
Buku Teks
Staples, 1970
Buku Teks
Kotler, Philip
John Wiley & Sons, 2003
Buku Teks
Brent D. Slife, Richard N. Williams, and Sally H. Barlow
Sage, 2001
Buku Teks