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