Esmaili, H.; Bornak, R. .; Shahrokhi, A. .; Jadidi, H. . Improving Production Efficiency by Implementing DMAIC Phases on the Six Sigma Method: A Case Study on the Oil Industry. Int. J. Ind. Chem. 2024, 15 (4), 1-26. https://doi.org/10.57647/j.ijic.2024.1504.23.