Abdullah , K.I. and Mohammed, N.H. 2023. Estimates of Coefficients for Bi-Univalent Functions in the Subclass H_∑ (n,γ,φ). Tikrit Journal of Pure Science. 28, 4 (Aug. 2023), 80–87. DOI:https://doi.org/10.25130/tjps.v28i4.1531.