Hassan MA, Ahmed AF. An Analysis Study of Sunspot Numbers and Solar Radio Flux (10.7 cm) for the Raising Phase of the Solar Cycle 25. Iraqi Journal of Science [Internet]. 2025 Dec. 30 [cited 2026 Jan. 9];66(12):5805-16. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/13695