Boulaye, Guy G., author
Macmillan, 1975
Buku Teks
edited by Veljko Milutinovic
Prentice-Hall, 1992
Buku Teks
Katzan, Harry, Jr., author
McGraw-Hill, 1977
Buku Teks
Van Nostrand Reinhold, 1988
Buku Teks
Husson, Samir S., author
Printice-Hall, 1970
Buku Teks