Shuib A, Matthew NK, Ramachandran S, & Mohammad-Afandi SH. (2019). ECONOMIC VALUATION USING TRAVEL COST METHOD (TCM) IN KILIM KARST GEOFOREST PARK, LANGKAWI, MALAYSIA. Journal of Tropical Forest Science (JTFS), 31(1), 078–089. Retrieved from https://jtfs.frim.gov.my/jtfs/article/view/175