Paranavitana, Senarat, author
Lake House Investments, 1972
Buku Teks
Trautz, F.M.
Munchen Muller 1926
Buku Teks
Arasartnam, Sinnappah, author
Prentice-Hall, 1964
Buku Teks
Bailey, Sydney D., author
William Brendon ans Son, 1952
Buku Teks
Ludowyk, E.F.C., author
Faber and Faber, 1962
Buku Teks