Buskirk, Richard Hobart, 1927-
Selling : principles and practices
McGraw-Hill, 1992
 Buku Teks SO
Hobbs, Thomas
Shocking beauty
Periplus, 1999
 Buku Referensi
Sharma, Rishi Raj
Sustainability Marketing: New Directions and Practices
Emerald Publishing, 2021
 eBooks
Hickey, Gerald Connon
Village in Vietnam/Geral Cannon Hickey
Yale University Press, 1967
 Buku Teks SO
Leinwand, Gerald
The pageant of world history / Gerald Leinwand
Allynand Bacon, Inc., 1974
 Buku Teks SO