Thibault, Paul J.
Routledge, 1997
Buku Teks
Harris, Roy
Routledge, 1995
Buku Teks
WW Norton and Company, 2002
Buku Teks
Broadbent, Geoffrey
Chichester: John Wiley & Sons, 1980
Buku Teks
McHardy, K.C.; Duguid, K.P.; Jamieson, M.J.; Petrie, J. C.; Towler, H.M.A.
Churchill Livingstone , 1997
Buku Referensi