Omar, Raqeeb, and Nawzad Hasan. “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, no. 6 (August 31, 2020): 5915–5929. Accessed December 19, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/7106.