Jaff R, Lawa F. Biostratigraphy and Systematic Palaeontology of Late Cretaceous Heterohelicidae Foraminifera from Kurdistan Region North-eastern Iraq. INJES [Internet]. 2020 Dec. 1 [cited 2025 Sep. 3];20(2):33-6. Available from: https://ojs.uomosul.edu.iq/index.php/injes/article/view/40746