Efren B. Isorena
Efren B. Isorena obtained his BA, MA and PhD in History from the University of the Philippines. His graduate studies deals with Philippine prehistory and maritime history. He held teaching positions at the University of the Philippines (Diliman and Manila campuses), De La Salle University, St. Scholastica’s College in Manila and the Assumption College in Makati. He is currently an Assistant Professor at the Ateneo de Manila University teaching undergraduate and graduate courses. The author has published a number of articles on Philippine prehistory and maritime history both in local and international journals.