Oualid Zidane, Mohammed Arafat Zidane (2024) “The Relationship between Human Development and Economic Diversification: A Comparative Study of Selected Arab Countries (Tunisia, Algeria, Saudi Arabia, Egypt) from 1995 to 2020”, European Economic Letters (EEL), 14(3), pp. 298–306. Available at: https://www.eelet.org.uk/index.php/journal/article/view/1775 (Accessed: 28 July 2026).