Mwakio, Charity N., and Elinami J. Minja. “ISO 9000 Certification: Some Lessons from a Large Firm in Tanzania”. Business Management Review 11, no. 1 (June 30, 2007): 98-119. Accessed May 2, 2024. https://bmr.udsm.ac.tz/index.php/bmr/article/view/5.