The Relationship Between Solar Indices and Electron Density of D- Region over Baghdad City During the Ascending and the Descending Phases of Solar Cycle 23. Iraqi Journal of Science [Internet]. 2022 Jun. 24 [cited 2024 May 17];57(2A):1031-40. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7485