TRIPATHI, H. Historical Study of the Role of Feudalism in World History: विश्व के इतिहास में सामंतवाद की भूमिका का ऐतिहासिक अध्ययन . RESEARCH REVIEW International Journal of Multidisciplinary, [S. l.], v. 8, n. 4, p. 130–137, 2023. DOI: 10.31305/rrijm.2023.v08.n04.016. Disponível em: http://www.rrjournals.com/index.php/rrijm/article/view/660. Acesso em: 17 mar. 2025.