Jayaratne, Chamathi, Premachandra Wattage, & Prasanthi Gunawardena.
" Estimating Economic Values for Pigeon Island National Park, Sri Lanka: Towards Designing Economic Instruments to Minimize Anthropogenic Degradation." <em>Journal of Environmental Management and Tourism</em> [Online], 17.1 (2026): 5 - 18. Web.  4 Mar. 2026