A. Zebua, Aji Nur Widyanto, and F. Husnayain, “Analysis of Liquid Fuel to Gas Fuel Conversion at Power Plant as an Effort to Reduce Greenhouse Gas Emissions and Its Economic Value (Case Study on MPP Nias and MPP Duri)”, IJECBE, vol. 3, no. 4, pp. 651–666, Dec. 2025.