Seitz, William C
Doubleday and Company,, 1961
Buku Teks
Souza, Luis A. Gomaz de
The Unesco Press, 1976
Buku Teks
Secretaia De Relaciones Exteriores Fondo de Culture Economica, 1999
Buku Teks
Vintage Books, 1956
Buku Teks
Casparis, J.G. (Johannes Gijsbertus) de, author
Penerbitan Universitas, 1958
Buku Teks