IOT-BASED POWER OUTAGE DETECTION AND ALERT SYSTEM USING GSM. International Journal of Engineering Research and Science & Technology, [S. l.], v. 21, n. 3 (1), p. 1034–1045, 2025. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/1356. Acesso em: 31 may. 2026.