Lumb, Andrew B.
Elsevier, 2005
Buku Teks
Robinson, James R.
Blackwell Scientific, 1975
Buku Teks
Bainbridge, F.A.
Longmans, Green , 1919
Buku Teks
Macey, Robert I.
Prentice-Hall, 1968
Buku Teks
Grossman, Charles J.
Sulzburger & Graham, 1995
Buku Teks