Barreiros, Nilson Rodrigues, and Hercilio Everton Nogueira da Silva. “Methodological Procedure for Applying DMAIC Model of Six Sigma Methodology in a Beverage Company: A Case Study”. International Journal for Innovation Education and Research 8, no. 4 (April 1, 2020): 51–73. Accessed May 19, 2024. https://scholarsjournal.net/index.php/ijier/article/view/2258.