Mustofa Achyar, Haris Gunawan, and Muhammad Erpandi Dalimunthe. 2026. “Power Supply System Reliability Analysis at the TVRI Transmitter Station Sibolangit Uses UPS 40 KVa and 250 Kva”. Jurnal Info Sains : Informatika Dan Sains 16 (02):280-90. https://ejournal.seaninstitute.or.id/index.php/InfoSains/article/view/8416.