JIANG, X. . Bio mathematical analysis on mechanical engineering during COVID-19 pandemic. Social Science Learning Education Journal, [S. l.], v. 7, n. 11, 2022. DOI: 10.15520/sslej.v7i11.3573. Disponível em: http://sslej.in/index.php/sslej/article/view/3573. Acesso em: 6 apr. 2025.