Thomas, B., R. Mwendera, and S. Obert. “TOTAL QUALITY MANAGEMENT AS A STRATEGY FOR ENHANCING COMPETITIVE ADVANTAGE IN THE COURIER SERVICES SECTOR IN HARARE METROPOLITAN PROVINCE.”. IJRDO - Journal of Applied Management Science (ISSN: 2455-9229), Vol. 5, no. 2, Feb. 2019, pp. 01-14, https://ijrdo.org/index.php/ams/article/view/2706.