De Leon, A. L. (2012). Ampatuan defense impugns Mangudadatu. Malaya Business Insight.
Chicago Style aipamenaDe Leon, Angela Lopez. "Ampatuan Defense Impugns Mangudadatu." Malaya Business Insight 2012.
MLA aipamenaDe Leon, Angela Lopez. "Ampatuan Defense Impugns Mangudadatu." Malaya Business Insight, 2012.
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