Umam, Riza Khoirul, and Anggia Kalista. 2021. “ANALISA PENGENDALIAN KUALITAS STATISTIK DENGAN MENGGUNAKAN METODE STATISTICAL PROCESS CONTROL DI PT. XYZ”. MathVision : Jurnal Matematika 3 (1):28-37. https://doi.org/10.55719/mv.v3i1.258.