1. Heschong Mahone Group. Daylighting in Schools. An investigation into the relationship between daylight and human performance. Detailed Report. 1999. Fair Oaks, CA.
2. Italian Technical Standard UNI 10840:2000. Light and lighting – School room – General criteria for artificial and natural lighting. Distributed through the Ente Italiano di normazione, Milan.
3. IES Daylight Metrics Committee. 2012. IES Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE). Report LM-83-12. Accessed December 3. http://www.ies.org.
4. Useful Daylight Illuminance: A New Paradigm to Access Daylight in Buildings;Nabil;Lighting Research and Technology,2005