ALDALAN, Dr. Bader Mohammed. The Effectiveness of a Proposed Training Program based on Digital Learning Objects in Developing the Spatial Ability for Preservice Mathematics Teachers in Qassim University. Humanities and Educational Sciences Journal, [S. l.], n. 21, p. 217–246, 2022. DOI: 10.55074/hesj.v0i21.417. Disponível em: https://hesj.org/ojs/index.php/hesj/article/view/417. Acesso em: 9 nov. 2026.