1. Energy Commission, Interim report on the performance of the electricity supply services in Malaysia (for the first half year of 2010), Energy Commission, Putrajaya, Malaysia, 2010.
2. A. Zain-Ahmed, Renewable energy, buildings and the fuel crisis, Proceedings of International Conference on Construction and Building Technology (2008), pp. 13–24.
3. Application of high-density daylight for indoor illumination
4. J.O'Connor, E.Lee, F.Rubinstein, and S.Selkowitz, Tips for daylighting with windows, The Regents of the University of California1997.
5. A simplified method to estimate energy savings of artificial lighting use from daylighting