The Story of Definite Integrals: A Calculus Textbook Narrative Analysis. International Journal of Education in Mathematics, Science and Technology, [S. l.], v. 12, n. 1, p. 139–177, 2023. DOI: 10.46328/ijemst.3045. Disponível em: https://ijemst.com/index.php/ijemst/article/view/663. Acesso em: 29 jun. 2025.