Ashour, Ola Abdelnaby. “A Q-VARIANT OF STEFFENSEN’S METHOD OF FOURTH-ORDER CONVERGENCE”. JOURNAL OF ADVANCES IN MATHEMATICS 10, no. 4 (April 23, 2015): 3443–3449. Accessed June 26, 2025. https://www.rajpub.com/index.php/jam/article/view/1243.