Mahardika, Nidya Shara, Luluk Saputri, Winda Amilia, and Andi Eko Wiyono. 2025. “ANALYSIS OF QUALITY CONTROL OF SWEET BREAD PRODUCTS USING SIX SIGMA METHOD (Case Study on UMKM Mahkota Bakery in Malang)”. Jurnal Penelitian Sains Dan Teknologi Indonesia 4 (1):434-42. https://journal.unej.ac.id/JPSTI/article/view/5090.