ADIT OKTOPRYADIN; ADI PURNAMA. IoT-Based UPS Device Electricity Usage Monitoring System with MQTT Protocol. Journal of Applied Informatics and Computing, [S. l.], v. 9, n. 4, p. 1290–1300, 2025. DOI: 10.30871/jaic.v9i4.9530. Disponível em: https://jurnal.polibatam.ac.id/index.php/JAIC/article/view/9530. Acesso em: 14 sep. 2026.