I. ALSAIF, K.; Q. ALQATHELY, Y.; T. CHALMERAN, N. Calculate weights for a numerical number image. Journal of Education and Science (JES), [S. l.], v. 24, n. 4, p. 119–131, 1970. DOI: 10.33899/edusj.1970.58934. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23541. Acesso em: 6 aug. 2025.