YULIA BAHREN, R.; INDRA MARTHA, E. Analysis of the Influence of Cost Management, Operational Efficiency, Service Innovation, and Customer Loyalty on Return on Assets (ROA) in Star-Rated Hotels in Jakarta . Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah, [S. l.], v. 8, n. 2, p. 1078–1085, 2026. DOI: 10.47467/alkharaj.v8i2.11479. Disponível em: https://journal-laaroiba.com/ojs/index.php/alkharaj/article/view/11479. Acesso em: 21 apr. 2026.