Koontz, Harold, author
Erlangga, 1980
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 2009
Buku Teks
Olsen, Michael D., author
Prentice-Hall, 2008
Buku Teks
George, Claude S.
Balai Lektur Mahasiswa, 1975
Buku Teks
Sinkey, Joseph F., author
Prentice-Hall, 1998
Buku Teks