Waluyo, J., Nabila, Z. P., Putra, A. I., Purba, I. T., Izzulhaq, M. G. ., Kurnia, I. ., Septian, A. ., & Ernawati, L. (2025). Comparative Study on Magnetic Activated Carbon Derived from Delignified and Non-delignified Palm Kernel Shell: Synthesis, Characterization, and Methylene Blue Adsorption Analysis. Journal of Engineering and Technological Sciences, 57(4), 559–572. https://doi.org/10.5614/j.eng.technol.sci.2025.57.4.10