Awwaliyah, Intan Nurul, Tiara Islamaya Subiakto Putri, and Hadi Paramu , trans. “Profit Maximization Through Customer Profitability Management Using Whale Curve and Time-Driven Activity Based Costing”. International Journal of Scientific Research and Management (IJSRM) 13, no. 10 (October 24, 2025): 9898–9917. Accessed October 26, 2025. https://ijsrm.net/index.php/ijsrm/article/view/6723.