Droughts in the Sudano-Sahelian Ecological Zone of Nigeria: Implications for Agriculture and Water Resources Development. Global Journal of Human-Social Science, [S. l.], v. 13, n. B2, p. 1–10, 2013. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/540. Acesso em: 3 apr. 2026.