Aryal M, Dutta JP, Regmi PP, Pandey KR. Willingness to pay by using travel cost method in Chitwan National Park, Nepal. J. Inst. Agric. Anim. Sci. [Internet]. 2018 Aug. 10 [cited 2024 Dec. 27];33:1-10. Available from: https://nepjol.info/index.php/JIAAS/article/view/20676