Usman IG, Ibrahim MO, Isah BY, Lawal N, Akinyemi ST. APPLICATION OF NON-STANDARD FINITE DIFFERENCE METHOD ON COVID-19 MATHEMATICAL MODEL WITH FEAR OF INFECTION. FJS [Internet]. 2023Aug.31 [cited 2024Dec.18];7(4):357 -368. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1933