Al-Dulaimi, Esraa Khalifa, and Salam Ismeal Al-Dulaimi. “A Study of Biostratigraphy of Sinjar Formation in Selected Sections from Northern Iraq”. Iraqi Journal of Science 58, no. 2B (January 10, 2022): 891–916. Accessed December 7, 2025. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6063.