Numerical study for epidemic model of hepatitis-B virusTahira Sumbal Shaikh, Nimra Fayyaz, Nauman Ahmed, Naveed Shahid, Muhammad Rafiq, Ilyas Khan and Kottakkaran Sooppy NisarEur. Phys. J. Plus, 136 4 (2021) 367DOI: https://doi.org/10.1140/epjp/s13360-021-01248-8