A Zero Inflated Power Sine Sine Dagum Distribution for Modeling Heavy-Tailed Data with Excess Zeros. International Journal of Development Mathematics (IJDM), [S. l.], v. 3, n. 2, p. 022–042, 2026. DOI: 10.62054/ijdm/0302.02. Disponível em: https://ijdm.org.ng/index.php/Journals/article/view/329.. Acesso em: 12 nov. 2026.