Samupakara Viyaparaya- Idhiri Maga ( Co-operative Movement the Road Ahead )
2006 | View More »
Goliya Unusum Vina Saha Paricharika Abhiyoga- ( Global Warming & Environmental Threats )
2008 | View More »
Kiri Karmanthaya Getalu Saha Abimathartha- ( Dairy Industry- Problems and Prospects )
2008 | View More »