“Synergetic Effect of Ni-CuO Nanocomposites with Activated Carbon Synthesized from Zeamays Bark for the Removal of Methylene Blue Dye ”, J. sci. sustain. dev., vol. 13, no. 2, pp. 72–94, Aug. 2025, Accessed: Oct. 28, 2026. Available: https://ojs-dev.ethernet.edu.et/index.php/jssd/article/view/650