1. Weedy rice: a threat to direct seeded rice culture in Sri Lanka;Abeysekara,2010
2. Improving crop establishment and reducing losses from weeds in direct-seeded rice in Sri Lanka;Abeysekera,2010
3. Weedy Rice: Biology, Ecology and Management;Azmi,2008
4. Impact of weedy rice infestation on rice yield and influence of crop establishment technique;Azmi,2005
5. Padi angin, an emerging threat to direct-seeded rice;Azmi,1994