Atshan, W. G., Hussein Battor, A., Abaas, A. F. and Irina Oros, G. (2020) “New and Extended Results On Fourth-Order Differential Subordination for Univalent Analytic Functions”, Al-Qadisiyah Journal of Pure Science, 25(2), pp. Math.1-13. doi: 10.29350/qjps.2020.25.2.1066.