“ How to Purify and Experiment With Dye Adsorption Using Carbon: Step-by-Step Procedure from Carbon Conversion from Agricultural Biomass to Concentration Measurement Using UV Vis Spectroscopy”. Indonesian Journal of Science and Technology 8, no. 3 (November 20, 2023): 363–380. Accessed August 17, 2025. https://ejournal.kjpupi.id/index.php/ijost/article/view/24.