N. PHANI KUMAR; K. SIVAREDDY. Mathematical study of SEIR model with functional rates of incidence and treatment. Malaya Journal of Matematik, India, v. 8, n. 04, p. 1953–1960, 2020. DOI: 10.26637/MJM0804/0105. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/1808. Acesso em: 16 jul. 2024.