Al-Maamari, M. and Al-Badrani, O. 2019. Calcareous Nannofossils Biostratigraphy of Shiranish Formation (K-306) well, Northern Iraq. Iraqi National Journal of Earth Science (INJES). 19, 2 (Dec. 2019), 1–10. DOI:https://doi.org/10.33899/earth.2019.170278.