Ridwan, R., Yeung, S. M. C. and Trissetianto, A. C. (2025) “Activity Based Costing (ABC) System on the Calculation of Cost of Goods Sold (COGS)”, Greenation International Journal of Economics and Accounting, 1(4), pp. 585–596. doi: 10.38035/gijea.v1i4.362.