Jayaratne, Chamathi, 		Wattage, Premachandra, AND 		Gunawardena, Prasanthi.
" 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], Volume 17 Number 1 (27 February 2026)