Sonjaitham, N., Puangmalee, N., Inmanee, C., & Wannasri, S. (2016). Influence of Copper and Tin onto Physical Properties and Anti-tarnish of Silver Alloys 750. Thai Industrial Engineering Network Journal, 2(3), 1–8. Retrieved from https://ph02.tci-thaijo.org/index.php/ienj/article/view/179655