SHAIKH, Kanwal Naz; MUSTAFA, Imran. Design and Implementation of RFID and GSM based Smart Prepaid Energy Meter. International Journal of Electrical Engineering & Emerging Technology , [S. l.], v. 4, n. SI 1, p. 33–36, 2021. Disponível em: https://oldarchive.ijeeet.com/index.php/ijeeet/article/view/64. Acesso em: 30 jul. 2026.