J. . Ramli, Y. . Nor Imrah, A. . Jeefferie, and M. . Mahat, “A study on the Potential of Cost and Energy - A Survey At playford building, University of South Australia”, J. Mech. Eng. Sci., vol. 1, no. 1, pp. 25–36, Dec. 2011, doi: 10.15282/jmes.1.2011.3.0003 .