Widiaputra, M. I., A. H. Asyhar, W. D. Utami, P. K. Intan, D. Yuliati, and M. F. . Rozi. “ptimal ontrol sing pontryagin’s aximum rinciple: uberculosis pread ase”. (IJCSAM) nternational ournal of omputing cience and pplied athematics, vol. 10, no. 2, Aug. 2025, pp. 119-23, https://journal.its.ac.id/index.php/ijcsam/article/view/4602.