Atshan WG, Hussein Battor A, Abaas AF, Irina Oros G. New and Extended Results On Fourth-Order Differential Subordination for Univalent Analytic Functions. QJPS [Internet]. 2020Mar.26 [cited 2024Apr.28];25(2):Math.1-13. Available from: https://journalsc.qu.edu.iq/index.php/JOPS/article/view/1066