WILSON J. PINZON; WILSON GORDILLO; MIGUEL A. ÁVILA A. Some Analysis Tools To Identify Difficulties In The Teaching And Learning Of The Integral Concept. Elementary Education Online, [S. l.], v. 20, n. 6, p. 1428–1436, 2023. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/5327. Acesso em: 3 jul. 2024.