Hichem Aichouche, Abdelkamel Maamri (2025) “The Role of Positive and Negative Motivation in Improving Employee Performance: A Case Study of the Youth Support and Employment Institution, El Oued Agency”., European Economic Letters (EEL), 15(1), pp. 835–844. Available at: https://eelet.org.uk/index.php/journal/article/view/2458 (Accessed: 24 June 2026).