AUSAVASUKHI, Artit, Thanchanok SIRIPHALA, Wanwisa LIMPHIRAT, and Sukanya NILMOUNG. 2024. “Leonardite Humic Acid Activated carbon/MnO\(_{2}\) Composite Nanostructures for Supercapacitors”. Journal of Metals, Materials and Minerals 34 (2). Bangkok, Thailand:1932. https://doi.org/10.55713/jmmm.v34i2.1932.