WAZNI , Adil Issa Kadhim; SAEED , Jaffer Omran Mohammed. Estimating the Surplus of the Tourist Consumer that the Visitors of the Chibayish Marshes Get in the City of Nasiriyah. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 57, n. 1, p. 171–185, 2021. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/12517. Acesso em: 4 nov. 2025.