A. Khanaqa, P., H. Karim, K. and M. Ismael, K. 2011. Biostratigraphy of Bluish Marl Succession (Maastrichtian) in Sulaimanyia, Area, Kurdistan Region NE- Iraq. Iraqi National Journal of Earth Science (INJES). 11, 2 (Dec. 2011), 81–99. DOI:https://doi.org/10.33899/earth.2011.5552.