Athapattu, P. L.; Wijenayaka, P. H.; Weediyawatta, P. K. G. P.; Rathnayake, S.; Aluthge, G.(Rajarata University of Sri Lanka, Faculty of Applied Sciences, 2019)
Ranasinghe, RAD. Dushmantha(Department of Social Sciences and Humanities,Faculty of Social Sciences and Humanities,Rajarata University of Sri Lanka, 2023-10-31)