Saswattecha Nantakrit Yodpijit, Somjai Wangrakdiskul, Nattaya Charoensuk, Kanyarat Phromphat, and Chalita Boonmee. “Sustainable Quality Transformation In Agro-Industrial Manufacturing: A Six Sigma–Kaizen Model For Thailand’s Crude Palm Oil Sector”. Jurnal Riset Ilmu Teknik 3, no. 2 (September 30, 2025): 125–140. Accessed October 22, 2025. https://jurnaljepip.com/index.php/jurit/article/view/195.