Hussein, I. 2022. The impact of customer citizenship behavior on enhancing marketing capabilities An analytical study of the opinions of managers in a number of private health institutions in Dohuk governorate. Humanities Journal of University of Zakho. 10, 4 (Dec. 2022), 1015–1030. DOI:https://doi.org/10.26436/hjuoz.2022.10.4.904.