Abdullah, M. N. “Analyze the Relationship Between Public Relations and Knowledge Sharing and Their Impact on Achieving Excellence Performance: An Analytical Study of the Opinions of a Sample of manager’s Private Banks Sector in the City of Erbil”. Journal of University of Human Development, vol. 6, no. 2, June 2020, pp. 11-25, doi:10.21928/juhd.v6n2y2020.pp11-25.