Aben, E. L. (2012). Sayyaf leader linked to 2007 beheading falls. Manila Bulletin.
Cita Chicago (17th ed.)Aben, Elena L. "Sayyaf Leader Linked to 2007 Beheading Falls." Manila Bulletin 2012.
Cita MLA (9th ed.)Aben, Elena L. "Sayyaf Leader Linked to 2007 Beheading Falls." Manila Bulletin, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.