Artikel Jurnal
edited and with introductory notes by Ira M. Robinson
Sage, Beverly Hills
Buku Teks SO
Catanese, Anthony J. [Anthony James]
Erlangga, 1986
Buku Teks SO
Bey Sapta Utama
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1994
UI - Skripsi Membership
edited by Andrew Blowers, Bob Evans
Routledge, 1997
Buku Teks SO