Calcareous Nannofossils Biostratigraphy of the Lower Part of Balambo Formation (Lower Cretaceous) in Azmir Anticline - Northeastern Iraq. INJES [Internet]. 2019 Jun. 1 [cited 2026 Aug. 9];19(1):19-38. Available from: https://earth.uomosul.edu.iq/index.php/earth/article/view/41107