“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 ), vol. 51, no. 1, June 2022, https://doi.org/10.55562/jrucs.v51i1.519.