AQILA, A. D.; SIBUEA, S. R.; HARAHAP, B. Analisis Pengendalian Kualitas CPO Menggunakan Metode Six Sigma di PT. Socfindo Matapao . RIGGS: Journal of Artificial Intelligence and Digital Business, [S. l.], v. 5, n. 1, p. 15244–15251, 2026. DOI: 10.31004/riggs.v5i1.8124. Disponível em: https://journal.ilmudata.co.id/index.php/RIGGS/article/view/8124. Acesso em: 2 may. 2026.