The changin America market / editor of Fortun
N.Y. Honaver House , 1955
Buku Teks SO
Aaker, David A.
Strategic market management
John Wiley & Sons, 1984
Buku Teks SO
Indonesian capital market review
FEUI - Management Research Center (MRC), {s.a}
Majalah, Jurnal, Buletin
Keller, kotler
Marketing Management
Pearson Education, Inc, 2006
Buku Teks SO
Cara sukses meraih keberhasilan penjualan anda / editor, Liem Tanuwidjaya
Progress, 2004
Buku Teks SO