Hordofa, Alemu. “Application of Laser Induced Breakdown Spectroscopy As an Alternative Method for Identification of Quality of Gold Alloys”. Ethiopian Journal of Science and Sustainable Development 5, no. 1 (February 11, 2019): 10 - 19. Accessed January 31, 2025. http://213.55.101.19/index.php/EJSSD/article/view/63.