Ravindar, B, and R Bharavi Sharma. “On A Subclass of Harmonic Univalent Funtions Associated With the Differential Operator”. International Journal of Engineering & Technology 7, no. 3.3 (June 21, 2018): 138–140. Accessed May 5, 2024. https://sciencepubco.com/index.php/ijet/article/view/14507.