ABDEL RAZZAQ MOHAMMED ALTAIE, M. Use Sequences to improve the numerical Riemann method to calculate integrals. Journal of Education and Science, [S. l.], v. 24, n. 1, p. 150–162, 1999. DOI: 10.33899/edusj.1999.51458. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42027. Acesso em: 10 sep. 2025.