Bai , XueliDu , WenpingLi , Fang and Zhou , Maolin. (2025). Stability Analysis of an SIS Epidemic Model in Heterogeneous Environment.
            <i>CSIAM Transactions  on Life Sciences</i>. <i>1</i> (2).
            280-298.
         doi:10.4208/csiam-ls.SO-2024-0007