Qader, Abdulkhaleq 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):48-62. https://doi.org/10.25156/ptjhss.v3n2y2022.pp48-62.