Berbaoui, K., and A. Kanachi. “The Relationship Between Transformational Leadership and Organizational Loyalty -Case Study of the Algeria Water Entreprise, Bechar-”. Finance and Business Economies Review, vol. 3, no. 2, June 2019, pp. 560-72, https://jiamcs.centre-univ-mila.dz/index.php/fber/article/view/540.