Widiaputra, M.I. et al. 2025. Optimal control using pontryagin’s maximum principle: Tuberculosis spread case. (IJCSAM) International Journal of Computing Science and Applied Mathematics. 10, 2 (Aug. 2025), 119–123. DOI:https://doi.org/10.12962/j24775401.ijcsam.v10i2.4602.