Billett, Michael
Pergamon Press , 1979
Buku Teks
Tipei, Nicolae
Stanford University Press, 1962
Buku Teks
Szeri, A.Z.
New York: McGraw-Hill, [date of publication not identified]
Buku Teks
Cameron, Alastair
Ellis Horwood, 1981
Buku Teks
FAG Kugelfischer Georg Schafer & Co., [date of publication not identified]
Buku Teks