Published in
Elsevier, Alexandria Engineering Journal, 1(60), p. 457-464, 2021
DOI: 10.1016/j.aej.2020.09.013
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Principal Component Analysis to Study the Relations between the Spread Rates of COVID-19 in High Risks Countries
Journal article published in 2020 by
Mohammad Reza Mahmoudi,
Mohammad Reza Mahmoudi,
Mohammad Hossein Heydari,
Sultan Noman Qasem,
Amirhosein Mosavi,
Shahab S. Band 
This paper is made freely available by the publisher.
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