The Role of Cost Efficiency in Mediating the Effect of Revenue Diversification on Profitability in Commercial Banks Listed on the Indonesia Stock Exchange (IDX). Architecture Image Studies, [S. l.], v. 7, n. 1, p. 510–519, 2026. DOI: 10.62754/ais.v7i1.868. Disponível em: https://www.journals.ap2.pt/index.php/ais/article/view/868. Acesso em: 21 may. 2026.