Satheesh Kumar Kumara Chinnaian. “Event-Driven Billing Infrastructure: Algorithmic Pricing Engines, Stream-Based Metering, and Revenue Analytics for Usage-Based Payment Platforms ”. International Journal of Computer Information Systems and Industrial Management Applications 18, no. 12s (July 29, 2026): 65–75. Accessed August 2, 2026. https://cspub-ijcisim.org/index.php/ijcisim/article/view/3878.