Mutahar, A. Y., A. M. Rasli, and B. M. Al-Ghazali. “Relationship of Transformational Leadership, Organizational Learning and Organizational Performance”. International Journal of Economics and Financial Issues, vol. 5, no. 1S, Oct. 2015, pp. 406-11, https://econjournals.com/index.php/ijefi/article/view/1527.