Valuing natural and non-natural attributes for a national forest park using a choice experiment method / Erda Wang, Jianhua Wei and Huiyuan Lu
Fairness of prices, user fee policy and willingness to pay among visitors to a national forest / Jin Young Chung, [et al.]
Ecoparques, bioparques e parques de campismo, opções inteligentes e divertidas : Programas, passeios e aventuras / Carminda Gonçalves