Rickmers, Albert D.
McGraw-Hill, 1967
Buku Teks
Sigel, Andrew F.
John Wiley & Sons, 1996
Buku Teks
Steel, Robert George Douglas, 1917-
McGraw-Hill, 1980
Buku Teks
Robert, Harry V.
McGraw-Hill, 1982
Buku Teks
Walpole, Ronald E.
Macmillan, 1968
Buku Teks