APA
Sri Lanka Institute of Development Administration, .SLIDA. Colombo: Sri Lanka Institute of Development Administration.
Chicago
Sri Lanka Institute of Development Administration, .SLIDA. Colombo: Sri Lanka Institute of Development Administration.
Harvard
Sri Lanka Institute of Development Administration, .SLIDA. Colombo: Sri Lanka Institute of Development Administration.
MLA
Sri Lanka Institute of Development Administration, .Colombo: Sri Lanka Institute of Development Administration. .
