Ravikumar K I, Ravi Rayappa, and Anusha K. “Implementation of Multi-Account ATM Card Using Embedded System”. Journal of Microprocessor and Microcontroller Research (September 23, 2024): 1–12. Accessed August 3, 2026. https://www.matjournals.net/engineering/index.php/JoMMR/article/view/953.