CHATURVEDI, R. . . The Hierarchy of Service Centre: A Case Study of Allahabad District, Uttar Pradesh. National Geographical Journal of India , [S. l.], v. 59, n. 2, p. 95–104, 2022. Disponível em: https://ngji.in/index.php/ngji/article/view/652. Acesso em: 22 jan. 2025.