Katz, Jerome A., author
McGraw-Hill Irwin, 2014
Buku Teks
Griffin, Ricky W., author
Prentice-Hall, 2002
Buku Teks
Wheeler, Bayard O.
Harper & Row Pub., 1962
Buku Teks
Boone, Louis E., author
Salemba Empat, 2013
Buku Teks
Boone, Louis E., author
Salemba Empat, 2014
Buku Teks