Telma Anis Safitri, Salsa Afni Laily, and Katon Muhammad. “Pengendalian Kualitas Di Line Painting Menggunakan Metode Six Sigma: Studi Kasus Di PT ABC”. Valid: Jurnal Ilmiah 22, no. 1 (December 31, 2024): 63–74. Accessed August 15, 2025. https://journal.stieamm.ac.id/valid/article/view/465.