ARYAL, M.; DUTTA, J. P.; REGMI, P. P.; PANDEY, K. R. Willingness to pay by using travel cost method in Chitwan National Park, Nepal. Journal of the Institute of Agriculture and Animal Science, [S. l.], v. 33, p. 1–10, 2018. DOI: 10.3126/jiaas.v33i0.20676. Disponível em: https://nepjol.info/index.php/JIAAS/article/view/20676. Acesso em: 3 jul. 2024.