M.Al-Dewachi, Bassam, and بسام. “Origin of Some Limestone and Gypsum Natural Bridges at Northern Iraq”. Rafidain Journal of Science 16, no. 5 (June 24, 2025): 26–34. Accessed August 16, 2025. https://ojs.uomosul.edu.iq/index.php/rsci/article/view/12101.