@article{202008.0464,
	doi = {},
	url = {https://doi.org/},
	year = 2020,
	month = {August},
	publisher = {Preprints},
	author = {Raissa Ji},
	title = {A COVID-19 Data Set Design, Modelling and Analysis on Selected Thirty Counties from Six States of the United States},
	journal = {Preprints}
}