Majul, Cesar A.
Dinamika Islam Filipina
LP3ES, 1989
 Buku Teks SO
Jocano, F. Landa
Philippine prehistory : an anthropological overview of the beginnings of Filipino society and culture
Philippine Center for Advanced Studies, 1975
 Buku Teks SO
Francisco, Juan R.
Indian culture in the Philippines : view and reviews / Juan R. Francisco
University of Malaya, 1985
 Buku Teks SO
Lindstrom, Eric
The Swedish parliamentary system : how responsibilities are divided and decisions are made / Eric LindstroĢˆm ;
Swedish Institute, 1982
 Buku Teks SO
Ramos, Fidel V.
Where I stand: a compaign kit on the issues / Fidel V. Ramos
Friends of Steady Eddie , 1992
 Buku Teks SO