Palmer, Doc, author
McGraw-Hill, 1999
Buku Referensi
Peters, Ralph W., author
Gulf Professional, 2015
eBooks
Cleland, David I., author
McGraw-Hill, 2010
Buku Teks
editor in chief, Gerard H. "Gus" Gaynor
McGraw-Hill, 1996
Buku Referensi
Armstrong, Michael, author
Kogan Page Limited, 1995
Buku Referensi