Eko Yudi Febriyanto and Mayra Fadhilla Dewi 2025. Numerical Analysis of Hepatitis A Transmission Using the Susceptible-Infected-Treatment-Recovery (SITR) Model with Vaccination Using 14th-Order Runge-Kutta Method Runge Kutta Method. Rangkiang Mathematics Journal. 4, 1 (Apr. 2025), 6–15. DOI:https://doi.org/10.24036/rmj.v4i1.71.