Using Some of the Nonparametric Smoothing Models to Build An Appropriate Model for Predicting Number of Cases of Covid-19 in Iraq. Al-Rafidain J Sci [Internet]. 2022 Dec. 31 [cited 2024 Nov. 19];52(2):32-46. Available from: https://alhadhar.com/raf-journal/index.php/JAUCS/article/view/540