Ummu Humairah Hashim, et al. “Harnessing Green Nitrogen-Doped Zinc Oxide for Efficient Methylene Blue Dye Photocatalytic Degradation in Wastewater Treatment”. Malaysian Journal of Science Health & Technology, vol. 11, no. 1, Feb. 2025, pp. 86-94, doi:10.33102/mjosht.v11i1.474.