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
Campbell-Walsh urology
editor-in-chief, Alan J. Wein ; editors, Louis R. Kavoussi [and others]
Saunders Elsevier, 2007
Buku Teks