Optimal Control of the Dynamics of the Spread of Covid-19 With Quarantine and Vaccination : Kontrol Optimal Dinamika Penyebaran Covid-19 Dengan Karantina Dan Vaksinasi. JMSK [Internet]. 2023 Jan. 5 [cited 2026 Aug. 19];19(2):374-90. Available from: https://journal.unhas.ac.id/index.php/jmsk/article/view/23989