Reflections on the Use of the Term "Feudalism". جماعة, Beer-Sheva, Israel, v. 3, p. 88–104, 1998. DOI: 10.64166/ykcw5y37. Disponível em: https://jamaa.bgu.ac.il/index.php/jamaa/article/view/380. Acesso em: 12 فبراير. 2026.