Tinsok, Jennarong, and Nitidetch Koohathongsumrit. “Reduction of Non-Conforming Products in the Titanium Jewelry Manufacturing Process”. Journal of Applied Statistics and Information Technology 10, no. 1 (June 20, 2025): 33–47. accessed August 30, 2026. https://ph02.tci-thaijo.org/index.php/asit-journal/article/view/257749.