Copula-Based Modelling of Drought Severity-Duration-Frequency Relationship of Sokoto-Rima-River Basin, Nigeria . FUDMA Journal of Engineering and Technology, [S. l.], v. 1, n. 2, p. 389–401, 2025. DOI: 10.33003/jgvx8081. Disponível em: https://fjet.fudutsinma.edu.ng/index.php/fjet/article/view/58. Acesso em: 14 mar. 2026.