asmaeil aljaburii, nazhan shaeban, and muhamad eatiat salih aljaburi. 2024. “Analysis of the Temporal and Spatial Variation of Actual Solar Brightness in Shirqat District During (1990-2020)”. Journal of Tikrit University for Humanities 31 (7):256-73. https://doi.org/10.25130/jtuh.31.7.2024.13.