edited by Eugeen Verhellen
Martinus Nijhoff, 1996
Buku Teks
Mayall, James B. L., author
Standard Publishers, 2009
Buku Teks
Hendro Retno Wulan, author
1999
UI - Tesis (Membership)
Peaslee, Amos J., author
Martinus Nijhoff, 1956
Buku Teks
Kirgis, Frederic L., author
West Publishing, 1993
Buku Teks