Khoiriyah, Z. et al. 2026. Analysis Of Activity Based Costing And Cost Volume Profit To Determine Optimal Profit At The Eka Jaya Opak Factory. Al-Kharaj: Journal of Islamic Economic and Business. 8, 1 (Jan. 2026). DOI:https://doi.org/10.24256/kharaj.v8i1.9245.