Farrah Syafira A, Respatiwulan, Subanti S. Estimation Parameter of Susceptible – Infected – Susceptible (SIS) Model with Maximum Likelihood Method Using Steepest Descent Approach to Spread of Typhoid Disease. Edusciencetech [Internet]. 2024 Aug. 23 [cited 2025 May 7];2(1):53-64. Available from: http://103.97.100.158/index.php/edusciencetech/article/view/568