Omar, R. and Hasan, N. 2020. ACTIVITY BASED COSTING SYSTEM AND ITS ROLE IN DECISION MAKING. A CASE STUDY OF CEMENT COMPANIES IN KURDISTAN REGION OF IRAQ. International Journal of Psychosocial Rehabilitation. 24, 6 (Aug. 2020), 5915–5929. DOI:https://doi.org/10.61841/rty6hn85.