Santiago de Chile: Producciones Ltda
Majalah, Jurnal, Buletin
Tokyo, Japan : Faculty of Law University
Majalah, Jurnal, Buletin
Gorbachev, Mikhail, author
Jakarta Gelora Aksara Pratama 1992,
Buku Teks
Haegendoren, M. van
Hasselt Heideland 1962,
Buku Teks
Boulder Westview Press 1992,
Buku Teks