Razali, N.H. binti .M. and Afthanorhan, W.M.A. B.W. 2014. Improving Energy Conservation Using Six Sigma Methodology at Faculty of Computer and Mathematical Sciences (FSKM), Universiti Teknologi Mara (UiTM), Shah Alam. Asian Journal of Economic Modelling. 2, 2 (Jun. 2014), 52–68. DOI:https://doi.org/10.18488/journal.8.2014.22.52.68.