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 . AJEKBS [Internet]. 2026 Feb. 1 [cited 2026 Apr. 21];8(2):1078-85. Available from: https://journal-laaroiba.com/ojs/index.php/alkharaj/article/view/11479