Williams, David B., author
Plenum Press, 1996
Buku Teks
Meek, Geoffrey A., author
John Wiley & Sons, 976
Buku Teks
Watt, Ian M., author
Cambridge University Press, 1997
Buku Teks
edited by D.B. Holt ... [et al.]
Academic Press, 1974
Buku Teks
edited by J.R. Harris
IRL Press, Oxford:
Buku Teks