Wazni AIK, Saeed JOM. Estimating the Surplus of the Tourist Consumer that the Visitors of the Chibayish Marshes Get in the City of Nasiriyah. IJSBAR. 2021;57(1):171-185. Accessed November 4, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/12517