“Calcareous Nannofossil Biostratigraphy of Maastrichtian-Paleocene Oil Shales from Jordan”. Iraqi National Journal of Earth Science (INJES) 25, no. 2 (April 1, 2025): 114–131. Accessed June 20, 2026. https://earth.uomosul.edu.iq/index.php/earth/article/view/40945.