KHIRALLAH, Mustafa Q. NUMERICAL SOLUTION OF PERTURBATION STURM-LIOUVILLE PROBLEMS USING CHEBYSHEV POLYNOMIAL. European Scientific Journal, ESJ, [S. l.], v. 9, n. 18, 2013. DOI: 10.19044/esj.2013.v9n18p%p. Disponível em: https://test.eujournal.org/index.php/esj/article/view/1191. Acesso em: 7 jun. 2025.