Abstract Background The ongoing global COVID-19 pandemic is caused by SARS-CoV-2. a novel coronavirus first discovered at the end of 2019. It has led to more than 50 million confirmed cases and more than 1 million deaths across 219 countries as of 11 November 2020. according to WHO statistics. https://www.randdsoftindonesia.com/product-category/puzzles-games-toys/
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