Analysis of Electrical Energy Efficiency through PLC-Based Pressure and Water Level Control in 10.5 Ton and 21 Ton Capacity Boilers. AMPERE [Internet]. 2025 Dec. 9 [cited 2026 Jun. 19];10(2):200-11. Available from: https://jurnal.univpgri-palembang.ac.id/index.php/ampere/article/view/20482