hamza, fatima. “The Psychlogical Level of Happiness Among Educational Assistants(a Field Study in Middle Schools in Laghaouat City ): 0102 00 02 تاريخ القبول: 0102 10 05 االستالم: تاريخ الاستلام”. Human Resources Development Research 14, no. 02 (December 25, 2019): 77–98. Accessed November 8, 2026. https://rdrh.univ-setif2.dz/index.php/rdrh/article/view/586.