AULIA, N.; SAPUTRI, W. H. .; WAHAB, W. Efektifitas Penerapan Metode Lean Six Sigma Terhadap Disiplin Waktu Peserta Didik MTs Al-Shighor Cabang Melawi. Indonesian Research Journal on Education, [S. l.], v. 4, n. 2, p. 596 –, 2024. DOI: 10.31004/irje.v4i2.691. Disponível em: https://irje.org/irje/article/view/691. Acesso em: 24 oct. 2026.