Woldetinsae, Girma. “Application of Portable X-Ray Fluorescence (PXRF) for Compositional Analysis of Metallic Heritages of Ethiopia and Implications”. Journal of Material and Process Technologies 1, no. 2 (December 30, 2024). Accessed June 7, 2025. http://196.189.126.158/index.php/jmpt/article/view/84.