KHAIRI KHALIL, J.; MAHMOOD, A. On Left Slides (Upper or Lower) in e-Abacus Diagram. Journal of Education and Science, [S. l.], v. 32, n. 1, p. 38–46, 2023. DOI: 10.33899/edusj.2023.136997.1295. Disponível em: https://stats.uomosul.edu.iq/index.php/edusj/article/view/42582. Acesso em: 9 sep. 2025.