Olatunji, S. O., A. T. Oladipo, and A. O. Fadipe-Joseph. 2021. “An Application Of Extended Derivative On Partial Sums Of Certain Analytic And Univalent Functions”. Journal of the Nigerian Mathematical Society 31 (1-3):191-96. https://ojs.ictp.it/jnms/index.php/jnms/article/view/761.