1. Black, A. (1992). Political thought in Europe, 1250–1450. Cambridge Medieval Textbooks. Cambridge University Press.
2. Braudel, F. (1993). Grammaire des civilisations. Flammarion, edition Champ.
3. Brett, A. (2005). Marsilius of Padua: The defender of the peace. Cambridge University Press.
4. Canning, J. (1996). A history of medieval political thought, 300–1450. Routledge.
5. Coleman, J. (2000). A history of political thought, from the Middle Ages to the Renaissance. Blackwell.