Umaningrum, D., Nurmasari, R., Santoso, U., Astuti, M., & Pradita, H. (2023). Adsorption of Congo Red onto Humic Acid Isolated from Peat Soil Gambut Regency, South Kalimantan. Molekul, 18(2), 330-338. doi:10.20884/1.jm.2023.18.2.8685