1. Abegunawardana P, Pope CA III (1986) Impacts of price and yield variation on profitability of management plans of subsistence farmers in Sri Lanka. Agric Adm 22:197–204
2. Abeygunawardane DV (2014) Why is the subsidy on fertilizers for rice in Sri Lanka continued? A thesis submitted for the degree of Doctor of Philosophy at The University of Queensland, Australia
3. Abeysekara SW, Jayawardena SN, Kiriwaththuduwage S, Abeysiriwardena DSZ (2002) Hybrid rice research and development in Sri Lanka. In: Virmani SS, Mao CX, Hardy B (eds) Hybrid rice for food security, poverty alleviation, and environmental protection, pp 341–354. Proceedings of the 4th International Symposium on Hybrid Rice, Hanoi, Vietnam. Los Baños (Philippines): International Rice Research Institute
4. Agrawal PK (2011) Climate change and its impact on agriculture. In: Souvenir-Indian Seed Congress, 22–23 Feb, Hyderabad, p 67–76
5. Alexandratos N, Bruinsma J (2012) World agriculture towards 2030/2050: the 2012 revision. Food and Agriculture Organization of the United Nations, Rome