Badaruddin, M. , Hanum, L., Melwita, E., Wibiyan, S., Wijaya, A., Ahmad, N. and Lesbani, A. 2025. Study of Selectivity Anionic Dye Removal and Sustainable Regeneration of Hydrochar from Spirogyra sp. Algae Biomass. Trends in Sciences. 22, 6 (May 2025), 9657. DOI:https://doi.org/10.48048/tis.2025.9657.