(2008). Abu Sayyaf demands P5-M ransom for safe release of NGO worker. Philippine Star.
Cita Chicago (17th ed.)"Abu Sayyaf Demands P5-M Ransom for Safe Release of NGO Worker." Philippine Star 2008.
Cita MLA (9th ed.)"Abu Sayyaf Demands P5-M Ransom for Safe Release of NGO Worker." Philippine Star, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.