edited by David B. Montgomery and Glen L. Urban
Prentice-Hall, 1970
Buku Teks
Aaker, David A.
John Wiley & Sons, 1984
Buku Teks
Howard, John A.
Richard D. Irwin, 1957
Buku Teks
Keegan, Warren J.
Prentice Hall of India, 1982
Buku Teks
Markin, Rom J.
John Wiley & Sons, 1982
Buku Teks