“Using Kernel Principal Component Analysis of Treating Linear Multiplicity Problem for Covid-19 Injured Data”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 51, no. 1 (June 29, 2022). Accessed November 19, 2024. https://alhadhar.com/raf-journal/index.php/JAUCS/article/view/519.