ذهب صالح, and بن مولود وثيق. “Strategies and Areas of the Situation During Crises - The Coved Pandemic 19amodel -: تاريخ الاستلام:06 08 2020 تاريخ القبول:16 04 2021”. Human Resources Development Research, vol. 16, no. 04, Dec. 2021, pp. 110-36, https://rdrh.univ-setif2.dz/index.php/rdrh/article/view/388.