Egan, Gerard
Brooks, 2014
Buku Teks SO
Djoko Purwoko
Fakultas Eknonomi dan Bisnis Universitas Indonesia, 2000
UI - Tesis Membership
Folsom, Ralph Haughwout
West Group, 1999
Buku Teks
edit by Dean C. Alexander, Seymour J. Rubin
Kluwer Law International , 1995
Buku Teks SO
The World Bank , 1999
Buku Teks SO