The national electrical code handbook
edited by Mark W. Earley, Richard H. Murray, John M. Caloggero
National Fire Protection Assoociation, 1989
 Buku Referensi
Summers, Wilford I.
NFPA handbook of the national electrical code
McGraw-Hill, 1975
 Buku Referensi
McPartland, Joseph F.
McGraw-Hill's national electrical code handbook
McGraw-Hill, 1996
 Buku Referensi
Marne, David J.
McGraw-Hill?s National Electrical Safety Code (NESC) handbook
McGraw-Hill, 2002
 Buku Referensi
McGraw-Hill's national electrical code handbook : eighteenth edition
editor, J.F. McPartland [and others]
McGraw-Hill, 1984
 Buku Referensi