Saad Al-Muhja, Malik. “Global Estimates for Monotone Approximation”. Journal of Al-Qadisiyah for Computer Science and Mathematics 2, no. 1 (September 9, 2017): 74–78. Accessed December 21, 2024. https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/214.