Premaratna, R.; Gunatilake, A.K.E.; de Silva, N.R.; Tilakaratne, Y.; Fonseka, M.M.D.; de Silva, H.J.(SEAMEO Regional Tropical Medicine and Public Health Project, 2001)
Kasturiratne, A.; Pathmeswaran, A.; Fonseka, M.M.D.; Lalloo, D.G.; Brooker, S.; de Silva, H.J.(SEAMEO Regional Tropical Medicine and Public Health Project, 2005)