Christy, Arthur
The John Day Company, 1945
Buku Teks
edited by Edward Friedman & Mark Selden
Vintage Books, 1971
Buku Teks
Harland, Bryce
Institute of Southeast Asian Studies , 1996
Buku Teks
Hornbeck, Stanley K.
World Peace Foundation, 1942
Buku Teks
Latourette, Kenneth Scott
Macmillan, 1952
Buku Teks