Santiago de Chile: Producciones Ltda
Majalah, Jurnal, Buletin
Santiago de Chile : Academia Diplomatica de Chile Andres Bello
Majalah, Jurnal, Buletin
Gorbachev, Mikhail, author
Jakarta Gelora Aksara Pratama 1992,
Buku Teks
Williams, E.N., author
Penguin Books, 1970
Buku Teks
Haegendoren, M. van, author
Hasselt Heideland 1962,
Buku Teks