PASERU, A. T.; YUDOKO, G.; SANUSI, D. A.; ARDIANSYAH, P. Z.; LIMOWA, A. Performance Optimization of Coal Hauling Operations Through DMAIC Framework: A Case Study at PT Berau Coal. Journal Integration of Management Studies, [S. l.], v. 3, n. 2, p. 261–273, 2025. DOI: 10.58229/jims.v3i2.360. Disponível em: https://jurnal.integrasisainsmedia.co.id/JIMS/article/view/360. Acesso em: 13 sep. 2026.