Low Cost Prepaid Energy Meter. Journal of Information Technology and Digital World, [S. l.], v. 4, n. 4, p. 317–328, 2023. DOI: 10.36548/jitdw.2022.4.006. Disponível em: https://irojournals.com/itdw/article/view/1355. Acesso em: 18 mar. 2026.