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 diciembre 17, 2025. https://amazoniainvestiga.info/index.php/amazonia/article/view/2515.