SABTU, Siti Hannah; MOHD MATORE, Mohd Effendi Ewan; MAAT , Siti Mistima. Enam sigma dalam pendidikan: penambahbaikan untuk kualiti pengajaran guru [Six sigma in education: improvement for teacher’s teaching quality]. Muallim Journal of Social Sciences and Humanities, [S. l.], v. 9, n. 2, p. 161–172, 2025. DOI: 10.33306/mjssj/326. Disponível em: https://mjsshonline.com/index.php/journal/article/view/639.. Acesso em: 4 apr. 2025.