Putra B, Umar F. Pengendalian Kualitas Produk Joint Break Arm di PT. Sandiya Jaya Abadi dengan Metode Six Sigma. JUTIN [Internet]. 2023Oct.12 [cited 2024Jul.22];6(4):1004-10014. Available from: http://journal.universitaspahlawan.ac.id/index.php/jutin/article/view/18298