Taofiqurrochman C, Rahayu P, Hasyim LP. The Effect of Non-Performing Loans (NPL) and Operational Costs to Operating Income (BOPO) on Core Capital with Return on Assets (ROA) as a Mediating Variable in Rural Banks (BPR) in the East Bekasi Region for the Period of 2019-2024. Eduvest [Internet]. 2026Feb.23 [cited 2026Apr.20];6(2):1787-80. Available from: https://eduvest.greenvest.co.id/index.php/edv/article/view/52846