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“ 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, vol. 8, no. 3, pp. 363–380, Nov. 2023, Accessed: Aug. 17, 2025. [Online]. Available: https://ejournal.kjpupi.id/index.php/ijost/article/view/24