Abayan, H. M. (2001). Lt. Gen. Benjamin Palma Defensor, Jr: The visionary leader of the Philippine Air Force. Philippine Graphic.
Chicago-viite (17. p.)Abayan, Haydee M. "Lt. Gen. Benjamin Palma Defensor, Jr: The Visionary Leader of the Philippine Air Force." Philippine Graphic 2001.
MLA-viite (9. p.)Abayan, Haydee M. "Lt. Gen. Benjamin Palma Defensor, Jr: The Visionary Leader of the Philippine Air Force." Philippine Graphic, 2001.
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