Anthony, Robert N. (Robert Newton), 1916-2006, author
Irwin/McGraw-Hill, 2004
Buku Teks
Hoskin, Robert E., author
Dryden Press, 1988
Buku Teks
Harlan, Neil E., author
Englewood Cliffs, N.J., Prentice-Hall
Buku Teks
Mielke, David E., author
John Wiley & Sons, 1986
Buku Teks
Sickle, Clarence L. van, author
Prentice-Hall, 1955
Buku Teks