Nguyen, van Canh
Stanford: Hoover Institution Press, Stanford University, 1983
Buku Teks
Ader, Emile B.
New York Barron's Educational Series 1970,
Buku Teks
Pye, Lucian W., 1921-2008, editor
Princeton: Princeton University Press, 1956
Buku Teks
London Penguin Book 1984
Buku Teks
Hoang, Van Chi, author
Popular Library , 1964
Buku Teks