et. al. OYS. Quality Control Analysis Using Statistical Procces Control (Spc) To Reduce Product Defects In Roastery X. TURCOMAT [Internet]. 2021 Apr. 24 [cited 2025 Nov. 27];12(8):1555-62. Available from: https://www.turcomat.org/index.php/turkbilmat/article/view/3204