fitriani, mahfudhotin and dhiya’u shidiqy (2026) “PRODUCTION COSTS AND COST OF GOODS SOLD AS DETERMINANTS OF NET PROFIT: EMPIRICAL EVIDENCE FROM PULP AND PAPER MANUFACTURING COMPANIES ON THE IDX”, OECONOMICUS Journal of Economics, 10(2). Available at: https://jurnalfebi.uinsa.ac.id/index.php/oje/article/view/2229 (Accessed: 10 August 2026).