ZHAO, B. Mathematical Analysis on troubleshooting problem during Covid-19 Pandemic. International journal of Complementary and Internal Medicine, [S. l.], v. 2, n. 1, p. 67–70, 2022. Disponível em: https://ijcimjournal.com/index.php/1/article/view/14. Acesso em: 22 dec. 2024.