Billy Arifa Tengger, and Ambar Winarni. “SIQS Epidemic Model With Bilinear Incidence: Model Epidemik SIQS Dengan Kejadian Bilinier”. Mathline : Jurnal Matematika dan Pendidikan Matematika 7, no. 1 (March 14, 2022): 110–120. Accessed June 7, 2025. https://mathline.unwir.ac.id/index.php/Mathline/article/view/256.