MAHARDIKA, Y. D. Dynamical Modeling of COVID-19 and Use of Optimal Control to Reduce the Infected Population and Minimize the Cost of Vaccination and Treatment. ComTech: Computer, Mathematics and Engineering Applications, [S. l.], v. 12, n. 2, p. 65-73, 2021. DOI: 10.21512/comtech.v12i2.6466. Disponível em: https://journal.binus.ac.id/index.php/comtech/article/view/6466. Acesso em: 29 mar. 2025.