Qader, A.N. 2022. COVID-19 the Cause of Development Crisis: A Theoretical Conceptual Framework for the Impact of COVID-19 as a Cause of Development Crises in Some Developing Countries. Polytechnic Journal of Humanities and Social Sciences. 3, 2 (Aug. 2022), 48-62. DOI:https://doi.org/10.25156/ptjhss.v3n2y2022.pp48-62.