Quality Control Analysis of the Arrival Washed Sand Material Using Statistical Process Control (SPC) Method at PT. XYZ: Analisis Pengendalian Kualitas Kedatangan Material Pasir Cuci Menggunakan Metode Statistical Process Control (SPC) Pada PT. XYZ. PELS 2026, 10 (1), 167-175. https://doi.org/10.21070/pels.v10i1.3140.