دراسة ميدانية على شركة الخطوط الجوية الجزائرية :covid-: Factorial structure of the leadership practices during the crisis of Covid-19 pandemic Case study Air Algerie company. (2025). Journal of North African Economies, 18(28), 589-604. https://journals.univ-chlef.dz/index.php/renaf/article/view/440