Brits, H.J. “A Quest for Waste Reduction at Institutions of Higher Learning: Investigating the Integration of Six Sigma and Lean Six Sigma Methodologies With Total Quality Management”. South African Journal of Higher Education 32, no. 4 (November 10, 2020): 37-50. Accessed October 7, 2024. https://www.journals.ac.za/sajhe/article/view/2582.