Rathnayake, R. M. W., and U. A. D. P. Gunawardena. “Estimation of Recreational Value of Horton Plains National Park in Sri Lanka: A Decision Making Strategy for Natural Resourcemanagement”. Journal of Tropical Forestry and Environment 1, no. 1 (October 26, 2011). Accessed April 19, 2024. https://journals.sjp.ac.lk/index.php/JTFE/article/view/86.