P. Gunawardena

Modelling soil erosion and hydropower linkages of Rantambe reservoir, Sri Lanka: towards payments for ecosystem services

E. Udayakumara, P. Gunawardena, 2021, Modeling Earth Systems and Environment.

Review of household solid waste charges for developing countries--A focus on quantity-based charge methods.

Prasanthi Gunawardena, Indunee Welivita, Premachandra Wattage, 2015, Waste management.

Land Policy and Agrarian change in Independent Sri Lanka

P. Gunawardena, 1981 .

Review of household solid waste charges for developing countries--A focus on quantity-based charge methods.

P. Wattage, I. Welivita, P. Gunawardena, 2015, Waste management.