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 J. Sci. Technol [Internet]. 2023 Nov. 20 [cited 2025 Aug. 17];8(3):363-80. Available from: https://ejournal.kjpupi.id/index.php/ijost/article/view/24