Wijesinghe., R. Wijisinghe, I.P.P.M. Perera, A.M.S.
Socio economic factors affecting the productivity of green gram /
Rasika Wijesinghe, I.P.P.M.Wijisinghe, A.M.S.Perera
- Colombo Hector Kobbekaduwa Agrarian Research and Training Institute 2015
- ix, 42 pages