Al-Marsoumi, A.-M., A. H. Al-Mohamed, R. and G.F. Hmood, H. (2003) “Mineralogy and Geochemistry of Yamama Formation (Late Beirriasian-Early Valanginian), Southern Iraq”, Iraqi National Journal of Earth Science (INJES), 3(1), pp. 11–29. doi: 10.33899/earth.2003.36679.