Kongmuang, W., T. Chairuangsri, and C. Chanmuang. “Twin-Jet Electropolishing of Cast Sterling Silver Alloys Using Perchloric Acid and Potassium Cyanide Solutions”. Journal of Metals, Materials and Minerals 22, no. 2 (December 23, 2012). Accessed December 6, 2021. http://jmmm.material.chula.ac.th/index.php/jmmm/article/view/30.