Addison-Wesley, 1966
Buku Teks
Ostrowsky, O.
ELBS, 1981
Buku Teks
edited by D.J. Weatherall, J.G.G. Ledingham, D.A. Warrell
Oxford University Press, 1987
Buku Teks
edited by A. Ghosh
E.J. Brill, 1990
Buku Referensi
Ashby, Michael F.
Elsevier, 2005
Buku Teks