Hyers-Ulam-Rassias Stability of Nonlinear Second Order Differential Equations with Forcing Term. International Journal of Development Mathematics (IJDM), [S. l.], v. 3, n. 3, p. 222–234, 2026. DOI: 10.62054/ijdm/0303.11. Disponível em: https://ijdm.org.ng/index.php/Journals/article/view/344.. Acesso em: 9 sep. 2026.