Mayangsari, N. E., Dira Pratiwi, D. O. ., Ashifa, N. A., Ramadani, T. A., Novitrie, N. A., Nindyapuspa, A., & Cahyono, L. (2025). Synthesis of Magnetic Composites of Chitosan-Fly Ash-Fe3O4 Nanoparticle to Improve Congo Red Dye Adsorption. International Journal of Eco-Innovation in Science and Engineering (IJEISE), 6(1), 1–6. https://doi.org/10.33005/ijeise.v6i1.143