Biyanto, T. R., A. F. Alhikami, G. Nugroho, R. Hantoro, R. Bayuaji, H. Firmanto, J. Waluyo, and A. I. Sonhaji. “Thermal Energy Storage Optimization in Shopping Center Buildings”. Journal of Engineering and Technological Sciences, vol. 47, no. 5, Oct. 2015, pp. 549-67, doi:10.5614/j.eng.technol.sci.2015.47.5.7.