Murugusundaramoorthy G, Vijaya K, Frasin BA. A subclass of harmonic functions with negative coefficients defined by Dziok-Srivastava operator. Tamkang J. Math. [Internet]. 2011 Dec. 31 [cited 2024 Nov. 21];42(4):463-7. Available from: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/231