Alex Sumanijaya Saragih, R. Rahmaniar, and Parlin Siagian. “An Optimization of Early Detection Monitoring Systemdisturbances in Distribution Transformer Internet Based Ofthings (IOT)”. Jurnal Multidisiplin Sahombu, vol. 5, no. 5, Sept. 2025, pp. 1740-52, https://ejournal.seaninstitute.or.id/index.php/JMS/article/view/7274.