Percy, Walker
Alfred A. Knopf, 1984
Buku Teks
Percy, Walker
Collins Publisher, 1987
Buku Teks
Nowak, Ronald M.
The Johns Hopkins University Press, 1999
Buku Referensi
Meek, C.K.
Oxford University Press, 1949
Buku Teks
Bui-Quang-Tung
Saigon France-Asie 1958
Buku Teks