A Comparative Monte Carlo Study of Hybrid and Single Robust Estimators for Nonlinear Regression Under Heavy-Tailed Error Distributions. International Journal of Development Mathematics (IJDM), [S. l.], v. 3, n. 2, p. 115–129, 2026. DOI: 10.62054/ijdm/0302.08. Disponível em: https://ijdm.org.ng/index.php/Journals/article/view/355.. Acesso em: 20 sep. 2026.