A. Hernández Santoyo, E. B. Barros Ferreira Junior, C. L. da Silva, D. Ciro de Oliveira, e M. V. de Souza Veloso, “ECONOMIC VALUATION OF ECOSYSTEM SERVICES: A STUDY APPLIED TO THE TUMUCUMAQUE MOUNTAINS NATIONAL PARK, AMAPÁ STATE, BRAZIL”, RBGDR, vol. 21, nº 2, maio 2025.