King, George L., (author.)
NY Workman Publishing, 2014
Buku Teks SO
Dorf, Richard C.
Addison-Wesley, 1981
Buku Teks
Hostetter, Gene H., 1939-
Saunders College Publishing, 1989
Buku Teks
Anthony, Robert Newton, 1916-2006
McGraw-Hill, 2003
Buku Teks
Tooley, Desmond Francis
Gower Press, 1973
Buku Teks