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 Style aipamenaInternational 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 aipamenaInternational 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.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.