Dickerson, Reed
Little, Brown and Company, 1954
Buku Teks SO
Thornton, G.C.
Butterworth, 1987
Buku Teks SO
Dickerson, Reed
American Bar Foundation, 1965
Buku Teks SO
Ari Wahyudi
Fakultas Hukum UI, T.th
Buku Teks SO
edited by Victor Thuronyi
International Monetary Fund, 1998
Buku Teks SO