Walsh, Ronald A.
Electromechanical design handbook
McGraw-Hill, 1995
 Buku Referensi
Gehmlich, Dietrich K.
Electromechanical systems
McGraw-Hill, 1967
 Buku Teks
Electronic materials and processes handbook/editor Charles A. Harper; Ronald N. Sampson
McGraw-Hill, 1994
 Buku Teks
Transformasi walsh dan transformasi walsh cepat
 Artikel Jurnal
Haines, Roger W.
HVAC systems design handbook
McGraw-Hill, 2010
 Buku Teks