Azar, Brian
Your successful sales career
[American Management Association, ], 2004
 eBooks
Voe, Merrill De
The how of successful sales management
Prentice-Hall, 1957
 Buku Teks SO
Lambert, Brian
10 steps to successful sales
American Society for Training & Development, 2010
 eBooks
Lapp, Charles L.
Successful selling strategies : how to climb the ladder to sales succes
McGraw-Hill, 1957
 Buku Teks SO
Firmanzah
Successful new product launching (npl) in the local market : bridging standardization and localization
Salemba Empat, 2009
 Buku Teks