Traister, John E., author
Van Nostrand Reinhod, 1982
Buku Teks
Whitehead, Randal, author
Rockport Publishers, 1999
Buku Referensi
Millerson, Gerald, author
Focal Press, 1972
Buku Teks
Illuminating Engineering Society, 1966
Buku Referensi
The Chractered Institution of Building Services Engineers, 1991
Buku Teks