Corpuz, Onofre
The Philippines
Prentice-Hall, 1965
Buku Teks
The Philippines
Buku Teks
Williams, Lea E.
Southeast asia a History/Lea E.Williams
Oxford University Press, Inc, 1976
Buku Teks
Lea, Wayne A.
Trends in speech recognition/Wayne A. Lea
Prentice-Hall, 1980
Buku Teks
Majul, Cesar A.
Muslims in the Philippines
The University of The Philippines Press, 1973
Buku Teks