International Foundation for Electoral Systems (IFES)., United States Agency for International Development (USAID). (2011). Issues and challenges to dispute resolution under the PCOS automated election system. Libertas.
Chicago-viite (17. p.)International Foundation for Electoral Systems (IFES)., United States Agency for International Development (USAID). Issues and Challenges to Dispute Resolution Under the PCOS Automated Election System. Quezon City: Libertas, 2011.
MLA-viite (9. p.)International Foundation for Electoral Systems (IFES)., United States Agency for International Development (USAID). Issues and Challenges to Dispute Resolution Under the PCOS Automated Election System. Libertas, 2011.
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