Kotler, Philip, author
Pearson, 2016
Buku Teks
Rewoldt, Stewart H.
Homewood: Richard D. Irwin, 1969
Buku Teks
Howard, John A., author
Richard D. Irwin, 1973
Buku Teks
Guiltinan, Joseph P.
McGraw-Hill , 1991
Buku Teks
Guiltinan, Joseph P.
McGraw-Hill , 1985
Buku Teks