Ch. Swapna, B. Nagaraju. “Design and Development of Energy Meter Using GSM”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 3 (December 27, 2021): 5824–5827. Accessed September 12, 2025. https://textitlejournal.com/turcomat.org/index.php/turkbilmat/article/view/11846.