2025. Application of Averrhoa Blimbi, L and Activated Carbon to Measure the Characteristics of No-Load Output Voltage, Output Voltage with LED Load and LED Voltage Drop. ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK. 15, 1 (May 2025), 77–88. DOI:https://doi.org/10.51747/energy.v15i1.1517.