Badaoui , M. and Chalani , S. ed dine 2020. Use of mathematical models to determine the severity of the Corona pandemic in Algeria for the period (01/03/2020 to 10/04/2020). Social Empowerment Journal. 2, 2 (Jun. 2020), 1-14. DOI:https://doi.org/10.34118/sej.v2i2.1006.