Raisha Nur Amalia, and Leo Aldianto. “Proposed Strategy to Improve Product Innovation and Service Quality at Pegipegi”. Journal of Business and Management Studies 6, no. 5 (September 21, 2024): 85–93. Accessed August 18, 2025. https://al-kindipublishers.org/index.php/jbms/article/view/7649.