Pemberton, John E., author
Pergamon Press, 1969
Buku Teks
Chandler, G.
Pergamon Press, 1974
Buku Teks
Burrington, Gillian A., author
Pergamon Press, 1972
Buku Teks
Mann, Thomas, author
Oxford University Press, 2005
Buku Teks
Maizell, Robert E., author
John Wiley & Sons, 1979
Buku Referensi