Ja’far, J. M., and K. A. Hadi. “Investigating the Compatibility of IRI and ASAPS Models in Predicting the FoF2 Ionospheric Parameter over the Mid Latitude Region”. Iraqi Journal of Science, Vol. 62, no. 10, Oct. 2021, pp. 3759-71, doi:10.24996/ijs.2021.62.10.34.