Sondrol, Paul (2005). "The Presidentialist Tradition in Latin America". International Journal of Public Administration. 28 (5): 517–530. doi:10.1081/PAD-200055210. S2CID153822718.
Riggs, Fred W. (1997). "Presidentialism versus Parliamentarism: Implications for Representativeness and Legitimacy". International Political Science Review. 18 (3): 258. doi:10.1177/019251297018003003. JSTOR1601343. S2CID145450791.
Riggs, Fred W. (1997). "Presidentialism versus Parliamentarism: Implications for Representativeness and Legitimacy". International Political Science Review. 18 (3): 258. doi:10.1177/019251297018003003. JSTOR1601343. S2CID145450791.
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Sondrol, Paul (2005). "The Presidentialist Tradition in Latin America". International Journal of Public Administration. 28 (5): 517–530. doi:10.1081/PAD-200055210. S2CID153822718.
Riggs, Fred W. (1997). "Presidentialism versus Parliamentarism: Implications for Representativeness and Legitimacy". International Political Science Review. 18 (3): 258. doi:10.1177/019251297018003003. JSTOR1601343. S2CID145450791.