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), pp. 427–442. doi: 10.20473/vol10iss20235pp427-442.