2022. 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, 1 (Jun. 2022). DOI:https://doi.org/10.55562/jrucs.v51i1.519.