Shanmugam, T. N., S. Sivasubramanian, and B. A. Frasin. “Argument Es-Timates of Strongly Starlike Functions Associated With Noor-Integral Operator”. Tamkang Journal of Mathematics 40, no. 1 (March 31, 2009): 7–13. Accessed May 4, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/31.