Analysis of Electrical Energy Efficiency through PLC-Based Pressure and Water Level Control in 10.5 Ton and 21 Ton Capacity Boilers. Jurnal Ampere, [S. l.], v. 10, n. 2, p. 200–211, 2025. DOI: 10.31851/vgfz6d92. Disponível em: https://jurnal.univpgri-palembang.ac.id/index.php/ampere/article/view/20482. Acesso em: 19 jun. 2026.