Herath, H.M.A.U.K. De Alwis, J.M.D.D.J. Dorabawila,, B.M.N.K.
The Review of the practices and financial profitability of organic tea production
B.M.N.K.Dorabawila, H.M.A.U.K.Herath, J.M.D.D.J.De Alwis
- Colombo The Department of National Planning 2002
- ix, 53 p.