Khalil, M.; Said, M.; Osman, H.; Ahmed, B.; Ahmed, D.; Younis, N.; Maher, B.; Osama, M.; Ashmawy, M. Fractional Order Models of Infectious Diseases: A Review. JES 2019, 1 (1), 1-11. https://doi.org/10.14419/jes.v1i1.19436.