A. Ortiz-Mena, “Arend Lijphart, Patterns of Democracy: Government Forms and Performance in Thirty-Six Countries”, PyG, vol. 7, no. 2, pp. 483–486, Apr. 2000, Accessed: Oct. 13, 2026. Available: http://politicaygobierno.cide.edu/index.php/pyg/article/view/420