Mahmud, M., T. Abedin, K. Z. Mostofa, A. Rahman, M. K. Basher, and M. Nur-E-Alam. “Battery and Ultra-Capacitor Based Hybrid Energy Storage System Utilizing a Multi-Input DC-DC Buck-Boost Converter”. Journal of Graphic Era University, vol. 13, no. 01, Feb. 2025, pp. 155-82, doi:10.13052/jgeu0975-1416.1318.