Adelia, K.A.C. et al. 2025. Effect Concentration Citric Acid Solution on Properties Double Layer Electrodes in Impedance Spectroscopy Measurements. Jurnal Fisika Unand. 14, 2 (Mar. 2025), 131–136. DOI:https://doi.org/10.25077/jfu.14.2.131-136.2025.