Background Reading Material on the Intellectual Property System of Sri lanka / WIPO
WIPO Publication, 1991
 Buku Teks
Tresidder, Argus John
Ceylon : an introduction to the resplendent land / by Argus John Tresidder
D. Van Nostrand, 1960
 Buku Teks
Kearney, Robert N.
The politics of Ceylon (Sri Lanka)
Cornell University Press, 1973
 Buku Teks
Amnesty international report 1982
Amnesty International Publication, 1982
 Buku Teks
Hulugalle, H.A.J.
Guide to Ceylon (Sri Lanka)/ H.A.J. Hulugalle
Lake House Investments, 1969
 Buku Teks