Babu Loganathan, ganesh, and Dr. E.Mohan. “High Quality Intelligent Database Driven Microcontroller Based Heartbeat Monitoring System”.
International Journal of Engineering and Technology 7, no. 4.6 (September 25, 2018): 472–476. Accessed April 28, 2025.
https://sciencepubco.com/index.php/IJET/article/view/28668.