Siregar, I.M. and Haryono, S. 2023. Green Banking: Operating Costs on Operating Income, Capital Adequacy Ratio, Financial Slack, Sustainability Officer, and Sustainability Committee . Jurnal Ekonomi Syariah Teori dan Terapan. 10, 5 (Sep. 2023), 427–442. DOI:https://doi.org/10.20473/vol10iss20235pp427-442.