Freire, Gustavo Henrique de Araújo, Hugo Suzart-Pinto, and Rafael Garcia Assunção. “SCIENTIFIC PRODUCTION ON COVID-19: EXPLORATORY STUDY”. ENVIRONMENTAL SMOKE 4, no. 1 (April 30, 2021): 14–25. Accessed September 21, 2021. https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/142.