BHUJU, G.; PHAIJOO, G. R.; GURUNG, D. B. Global Stability of COVID-19 Model: A Case Study of Nepal. Journal of Nepal Mathematical Society, [S. l.], v. 3, n. 2, p. 1–12, 2020. DOI: 10.3126/jnms.v3i2.33954. Disponível em: https://www.nepjol.info/index.php/jnms/article/view/33954. Acesso em: 11 aug. 2022.