Angara, E. J. (2002). The role of the opposition and the party system [speech delivered during the Kilosbayan Forum held at Shalom Center, Malate, Manila 15 February, 2001]. Kilosbayan.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Angara, Edgardo J. "The Role of the Opposition and the Party System [speech Delivered During the Kilosbayan Forum Held at Shalom Center, Malate, Manila 15 February, 2001]." Kilosbayan 2002.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Angara, Edgardo J. "The Role of the Opposition and the Party System [speech Delivered During the Kilosbayan Forum Held at Shalom Center, Malate, Manila 15 February, 2001]." Kilosbayan, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.