et. al., S Uthaya selva raja,. “Automatic Billing System for Electric Vehicle Charging”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 13 (June 22, 2021): 5307–5310. Accessed May 21, 2025. https://www.turcomat.org/index.php/turkbilmat/article/view/9722.