Wijayaratna, C.M.
Irrigation management in Sri Lanka problems and prospects - Colombo Institute of Policy Studies 1996 - 7p.
IPS
Economic Development
Sri Lanka
ED 9.1.0
Irrigation management in Sri Lanka problems and prospects - Colombo Institute of Policy Studies 1996 - 7p.
IPS
Economic Development
Sri Lanka
ED 9.1.0