SABTU, Siti Hannah; @ EWAN MOHD MATORE, Mohd Effendi; MISTIMA MAAT, Siti. Five Spectacular of the Six Sigma DMAIC Model to Improve the Quality of Teacher Teaching in Schools: Revolution or Fantasy?. International Journal of Academic Research in Progressive Education and Development, [S. l.], v. 12, n. 2, 2023. Disponível em: https://ijarped.com/index.php/journal/article/view/1200. Acesso em: 16 sep. 2025.