AL-RABEAI, Amani Abdo Muhammad; MAHDI, Abdullah Abbas. The effect of using the abacus program in developing mental math skills and logical intelligence among students of the second cycle of basic education. Sana’a University Journal of Human Sciences, [S. l.], v. 5, n. 2, 2023. DOI: 10.59628/jhs.v5i2.507. Disponível em: https://journals.su.edu.ye/index.php/jhs/article/view/507. Acesso em: 17 may. 2024.