Ezugorie IG, Ezugorie MO, Agbata BC. Semi-Analytical Solution of Fractional –Order Mathematical Model of COVID-19 Via Atangana Baleanu- Caputor Derivative. GPH-IJM [Internet]. 10Jun.2025 [cited 15Sep.2025];8(4):01-0. Available from: https://gphjournal.org/index.php/m/article/view/1946