AOUF, M. K., and A. SHAMANDY. “A GENERALIZATION OF CERTAIN CLASS OF ANALYTIC FUNCTIONS WITH NEGATIVE COEFFICIENTS”. Tamkang Journal of Mathematics 26, no. 2 (June 1, 1995): 107–117. Accessed July 18, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4384.