Bibliografi : hal. 252-253
Judul Asli : Basic marketing research
Bibliografi : : hal. D-1-D-16; Judul Asli : Principles of marketing
Judul Asli : International marketing management
Judul Asli : Marketing management
Judul Asli : International marketing management
Judul Asli : Marketing management
Bibliografi : hal. 443-444 ; Judul Asli : Marketing management, twelfth edition
Bibliografi : hlm.