Bailey, Sydney D.
Ceylon
William Brendon ans Son, 1952
Buku Teks
Trautz, F.M.
Ceylon
Munchen Muller 1926
Buku Teks
hapus4
The public's business : the politics and pratices of government corporations
MIT Press , 1978
Buku Teks
Hamilton, Robert W.
Corporations
West Publishing, 1992
Buku Teks
Paranavitana, Senarat
Glimpses of Ceylon's past
Lake House Investments, 1972
Buku Teks