Donnelly, Thomas C.
The government of Mexico
The University of New mexico Press, 1953
 Buku Teks
Vaillant, George C.
The aztecs of Mexico
Penguin Books, 1944
 Buku Teks
Pick, James B.
Atlas of Mexico
Westview , 1989
 Buku Referensi
Plant, Derrick
A Viva voce:a modern course of spoken Italian for English speakers
Zanichelli, 1978
 Buku Teks
Murray, Rowena
How to survive your viva : defending a thesis in an oral examination
Open University Press, 2003
 Buku Teks