London, Oxford University Press
Buku Referensi
Sharpe, Gareth, author
Guinness Publishing, 1994
Buku Referensi
compiled and edited by Bill Wannan
Macmillan, 1974
Buku Referensi
Cohen, J.M. (John Michael), 1903-1989, author
Viking, 1993
Buku Referensi
Jose Rizal, author
ASEAN Committee on Culture and Information, 1991
Buku Teks