edited by George Zinkhan
American Marketing Association, 2000
Buku Teks
Mike Oktavia Pintauli, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2019
UI - Skripsi (Membership)
Peter, J. Paul, author
Mc Graw-Hill, 2001
Buku Teks
Howard, John A., author
Prentice-Hall, 1989
Buku Teks
Peter, J. Paul, author
Mc Graw-Hill, 2001
Buku Teks