Foundation for Nationalist Studies, 1981
Buku Teks
Constantino, Renato, author
Karrel, 1989
Buku Teks
editors, Marlon A. Wui, MA. Glenda S. Lopez
Third World Studies Center, 1997
Buku Teks
Jones, Gregg R.
Westview Press, 1989
Buku Teks
Majul, Cesar A., author
LP3ES, 1989
Buku Teks