Peters, Carl
Irwin Professional, 1997
Buku Teks
editor, Carl Peters, Ben Warwick
Irwin Professional Publishing, 1997
Buku Referensi
DiAntonio, Angelo E.
Prentice-Hall, 1986
Buku Teks
Habibi
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Skripsi Membership
Harrington, Diana R., 1940-
Toppan Company, 1991
Buku Teks