A. Malak, Zaid, Omar Ahmed Al-Badrani, and Maha Atiah wahsh Al- Shamary. 2023. “The Use of Nannofossils in Determining the Age of the Sargelu Formation (Middle Jurassic) in the Hanjera Section, Northern Iraq”. Iraqi National Journal of Earth Science (INJES) 23 (1):1-12. https://doi.org/10.33899/earth.2022.133948.1016.