Stephen P. Koff (2000). Italy: From the First to the Second Republic. Pasquino, Gianfranco (1995). "Die Reform eines Wahlrechtssystems: Der Fall Italien". Politische
Henri Pirenne (1971), pp. 114-115 Norberto Bobbio,Nicola Matteucci & GianfrancoPasquino (2005), p. 251 Quentin Skinner. The foundations of modern political
(英语). 諾貝托·波比歐; Nicola Matteucci(義大利語:Nicola Matteucci); GianfrancoPasquino(英语:GianfrancoPasquino). Diccionario de política 1. Siglo XXI Editores(西班牙语:Siglo