Zhao Bin, Jiang Xia, Cao Jinming, Mathematical Modeling of Covid-19, Journal of Current Scientific Research, Volume 1, Issue 1, 2021, Pages 1-11, ISSN 2766-8681, https://doi.org/10.14302/issn.2766-8681.jcsr-21-3701. (https://openaccesspub.orgjcsr/article/1557) Keywords: COVID-19; SIR model; Netlogo; curve fitting; parameter optimization