Wanigasundera, W.A.D.P. (2015) Status of Extension and Advisory Service in Sri Lanka, AESA Working Paper, Agricultural Extension in South Asia, www.aesa-gfras.net
Wanigasundera, W.A.D.P. (2016) Report on the Capacity Needs Assessment of Extension and Advisory Service (EAS) Providers in Sri Lanka, Agricultural Extension in South Asia, www.aesa-gfras.net