Syamsul, M., S. . Toaha, and K. Kasbawati. “Stability Analysis of Tuberculosis Spread Model Co-Infected Diabetes Mellitus With DOTS Strategy”. Jurnal Matematika, Statistika Dan Komputasi, vol. 18, no. 3, May 2022, pp. 336-47, doi:10.20956/j.v18i3.19523.