Marikkannan, N., and C. Ganesamoorthy. “On Applications of Differential Subordination and Superordination”. Tamkang Journal of Mathematics 39, no. 2 (June 30, 2008): 155–164. Accessed May 3, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/26.