1. Road lighting calculations;CIE,2000
2. Lighting of roads for motor and pedestrian traffic;CIE,2010
3. Road surfaces and lighting (joint technical report CIE/PIARC);CIE,1984
4. International Energy Agency (Subtopic: Lighting). [Online]. http://www.iea.org/topics/energyefficiency/subtopics/lighting/(Accessed January 2017).
5. Cree. The Food Bank of Central & Eastern North Carolina. [Online]. http://api.icentera.com/v2/getfile.aspx?f=F99D35DE14B57932F63E328029292960DB8D87BA355C3F10B3475926C21D7226FF28535CD0C3348D (Accessed January 2017).