Barrie, Donald S.
McGraw-Hill, 1978
Buku Teks
Clough, Richard Hudson
John Wiley & Sons, c1991
Buku Teks
Murdoch, John
Spon Press, 2000
Buku Teks
Levy, Sidney M.
McGraw-Hill , 2002
Buku Teks
Wass, Alonzo
Englewood Cliffs, NJ: Prentice-Hall, 1972
Buku Teks