Al-Khalaif, Saif, and Majid Al- Mutwali. 2020. “Biostratigraphy and Sequence Stratigraphy and Depositional Environment of Kolosh Formation in Dohuk Area, Northern Iraq”. Iraqi National Journal of Earth Science (INJES) 20 (2):18-42. https://doi.org/10.33899/earth.2020.170362.