Soleh, M., Nazvira, M., Wartono, W., Safitri, E. and Sriningsih, R. 2025. STABILITY ANALYSIS OF THE SIQR MODEL OF DIPHTHERIA DISEASE SPREAD AND MIGRATION IMPACT. BAREKENG: Jurnal Ilmu Matematika dan Terapan. 19, 1 (Jan. 2025), 173-184. DOI:https://doi.org/10.30598/barekengvol19iss1pp173-184.