Syahidah Azis R, Zakaria A, Hassan J, et al. ANNEALING STUDY OF a-Fe2O3 NANOPARTICLES STEEL-WAST. Solid State Sci. Technol. 2026;24(2):280-288. Accessed July 29, 2026. https://journal.massmalaysia.org/ojs/index.php/ssst/article/view/589