Tannady, Hendy, and Fauzan Jiddan. “The Application of Six Sigma Framework (Define-Measure-Analyse-Improve-Control) to Improve Product Quality in Water Dispenser Manufacturing Company”. Jurnal Sistim Informasi dan Teknologi 6, no. 1 (February 29, 2024): 7–12. Accessed August 17, 2025. http://www.jsisfotek.org/index.php/JSisfotek/article/view/339.