Al-Subaihi, Ibrahim, and T. Al-Harbi. “An Optimal Class of Eighth-Order Iterative Methods Based on King’s Method”. Journal of Progressive Research in Mathematics 13, no. 3 (June 20, 2018): 2329-2336. Accessed April 27, 2024. http://scitecresearch.com/journals/index.php/jprm/article/view/1556.