Sirait, Regina, Morlan Pardede, Elferida Hutajulu, Junaidi Junaidi, Stephanie Ch Y Pardede, and Arnold Pakpahan. “Implementation of PZEM-004T and LoRa for Internet of Things–Based Monitoring of Power Supply Sources in Laboratory Building”. Jurnal Mandiri IT 14, no. 2 (October 23, 2025): 223–235. Accessed May 14, 2026. https://ejournal.isha.or.id/index.php/Mandiri/article/view/457.