Abo Lifa, Sanaa. “The Relationship Between the Ethical Behavior of the Leadership And the Spirituality of the Work Place: An Empirical Study of the Role of Psychological Empowerment As a Mediator Variable”. The Arab Journal of Administration, vol. 39, no. 4, Dec. 2019, pp. 209-24, doi:10.21608/aja.2019.66926.