Izza, Ainul, and Dini Retnowati. “ANALISIS KUALITAS PRODUK FURNITURE DENGAN PENDEKATAN METODE SIX SIGMA”. Heuristic 18, no. 2 (October 31, 2021): 59-72. Accessed April 2, 2025. https://jurnal.untag-sby.ac.id/index.php/HEURISTIC/article/view/6149.