Yang, J., Chong, A., Santamouris, M., Kolokotsa, D., Lee, S. E., Tham, K. W., Sekhar, C., & Cheong, D. K. W. (2017). Energy utilizability concept as a retrofitting solution selection criterion for buildings. Journal of Civil Engineering and Management, 23(5), 541-552. https://doi.org/10.3846/13923730.2017.1323794