Schram, Peter J.
Electrical installations in hazardous locations
Massachusetts: National Fire Protection Assocoation, 1988
 Buku Teks
National electrical code handbook
Mark W. Earley, Jeffrey S. Sargent, Joseph V. Sheehan, E. William Buss, editor
National Fire Protection Assosiation, 2008
 Buku Referensi
The national electrical code handbook
edited by Mark W. Earley, Richard H. Murray, John M. Caloggero
National Fire Protection Assoociation, 1989
 Buku Referensi
McPartland, Joseph F.
Handbook of practical electrical design
McGraw-Hill, 1984
 Buku Referensi
Standard handbook for electrical engineers
edited by Donald G. Fink, H. Wayne Beaty
McGraw-Hill, 1987
 Buku Referensi