Al-Abbadi, Ma’moun Harayzeh, and Maslina Darus. “Hankel Determinant for Certain Class of Analytic Function Defined by Generalized Derivative Operator”. Tamkang Journal of Mathematics 43, no. 3 (September 30, 2012): 445–453. Accessed May 3, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/517.