Pillage, Lawrence T., author
McGraw-Hill , 1995
Buku Teks
Boylestad, Robert L., author
Pearson - Prentice Hall, 2009
Buku Teks
Boylestad, Robert L., author
Prentice-Hall, 1982
Buku Teks
Boylestad, Robert L.
Pearson Prentice Hall, 2013
Buku Teks
Hayt, William H., author
Houghton Mifflin , 1984
Buku Teks