Geographical Factors And Economic Development In The North East India; A Historical Perspectives. International Journal of Environmental Sciences, [S. l.], p. 2442–2457, 2025. DOI: 10.64252/w32k4e17. Disponível em: https://theaspd.com/index.php/ijes/article/view/4383.. Acesso em: 25 jun. 2026.