Lahmidi, Adel, and Taieb Djaballah. “Motivation Among Contract Workers - A Field Study at the University of M’sila”. Al-Jamie Journal In Psychological Studies and Educational Sciences, vol. 9, no. 2, Dec. 2024, pp. 532-47, https://journals.univ-msila.dz/index.php/ajpe/article/view/4972.