Argyros, Ioannis K., and Sanjay K. Khattri. “Convergence Analysis for the Two-Step Newton Method of Order Four”. Rev. Anal. Numér. Théor. Approx. 43, no. 1 (February 1, 2014): 33–44. Accessed April 15, 2025. https://ictp.acad.ro/jnaat/journal/article/view/2014-vol43-no1-art2.