NOVITA NURRRY CHRISYANI; CAKTI INDRA GUNAWAN; YUNI SETYAWATI. An Analysis of Product Quality Control using The Six Sigma Method at Omah Produksi Tempe Rizky Jaya, Batu City . International Journal of Management and Business, [S. l.], v. 3, n. 1, p. 227–230, 2026. Disponível em: https://irdhjournals.com/ijmb/article/view/816. Acesso em: 12 may. 2026.