Kabuya, Kanyinda, Oludolapo Akanni Olanrewaju, and Ian Joseph Lazarus. “IMPROVING ENERGY USAGE IN COMMERCIAL BUILDINGS USING SIX SIGMA DMAIC”. The South African Journal of Industrial Engineering 34, no. 2 (August 25, 2023): 138–151. Accessed December 8, 2024. http://sajie.journals.ac.za/pub/article/view/2392.