Praiphruk, S, G Lothongkum, E Nisaratanaporn, and B Lohwongwatana. 2013. “Investigation of Supersaturated Silver Alloys for High Hardness Jewelry Application”. Journal of Metals, Materials and Minerals 23 (2). Bangkok, Thailand. http://jmmm.material.chula.ac.th/index.php/jmmm/article/view/95.