A criteria of φ -like functions. Gupta, Sushma; Singh, Sukhjit; Singh, Sukhwinder — 2007 General Mathematics
On a class of multivalent functions defined by a multiplier transformation. Singh, Sukhwinder; Gupta, Sushma; Singh, Sukhjit — 2008 Matematichki Vesnik
An extension of the region of variability of a subclass of univalent functions. Singh, Sukhwinder; Gupta, Sushma; Singh, Sukhjit — 2009 JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
On starlikeness and convexity of analytic functions satisfying a differential inequality. Singh, Sukhwinder; Gupta, Sushma; Singh, Sukhjit — 2008 JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]