Habib Al- Sharoot, M. and Yousif Abdoon, E. 2017. Prediction by using spectral analysis and artificial neural networks methodologies: Comparison Study. Journal of Al-Qadisiyah for Computer Science and Mathematics. 9, 2 (Nov. 2017), Stat Page 17 – 33. DOI:https://doi.org/10.29304/jqcm.2017.9.2.326.