WARTAN, H. Use of graphs in the statistical modeling process. Journal of Education and Science, [S. l.], v. 27, n. 1, p. 142–157, 2014. DOI: 10.33899/edusj.2014.162138. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41426. Acesso em: 10 sep. 2025.