Argyros, I., D. Sharma, C. Argyros, S. Parhi, S. Sunanda, and M. Argyros. “Extended Ball Convergence for a Seventh Order Derivative Free Class of Algorithms for Nonlinear Equations”. Matematychni Studii, Vol. 56, no. 1, Oct. 2021, pp. 72-82, doi:10.30970/ms.56.1.72-82.