Mtotywa, Matolwandile Mzuvukile. “Developing a Quality 4.0 Maturity Index for Improved Business Operational Efficiency and Performance”. Quality Innovation Prosperity 26, no. 2 (August 1, 2022): 101–127. Accessed May 11, 2024. https://www.qip-journal.eu/index.php/QIP/article/view/1718.