1.
Akogwu B. THE SOLUTION OF A MATHEMATICAL MODEL FOR COVID-19 TRANSMISSION AND VACCINATION IN NIGERIA BY USING A DIFFERENTIAL TRANSFORMATION METHOD. FJS [Internet]. 2022Nov.2 [cited 2024Apr.25];6(5):50 -56. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1089