Helali, Mamdouh Mosaad. «Fostering Volunteerism Among Students With Learning Disabilities: The Role of Primary Schools and Challenges». Amazonia Investiga 12, no. 69 (septiembre 30, 2023): 27–41. Accedido marzo 7, 2026. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/2515.