Hint, M. (Ștefan) 2018. Conceptual Delimitation of costs, Expenses and Bending Calculation Systems. Empirical Study: The Costing System in the Electrical Lighting Industry. Journal of Business Management and Economics. 6, 02 (Feb. 2018), 07–16. DOI:https://doi.org/10.15520/jbme.v6i02.2047.