Barreiros NR, da Silva HEN. Methodological procedure for applying DMAIC model of six sigma methodology in a beverage company: a case study. Int J Innov Educ Res [Internet]. 2020 Apr. 1 [cited 2024 May 19];8(4):51-73. Available from: https://scholarsjournal.net/index.php/ijier/article/view/2258