Dr. Seid Mohammed, Dr. Goulap Jagadish Brahma and Shegaw Aderaw 2019. Impact of Total Quality Management (TQM) on Operational Performance of Ethiopian Pharmaceutical Manufacturing Plants. International Journal of Engineering and Management Research. 9, 4 (Aug. 2019), 78–86. DOI:https://doi.org/10.31033/ijemr.9.4.13.