R. Kider, J. and N. Gheeab, M. 2019. Properties of The Space GFB(V, U). Journal of Al-Qadisiyah for Computer Science and Mathematics. 11, 1 (Jan. 2019), Math Page 102 – 110. DOI:https://doi.org/10.29304/jqcm.2019.11.1.478.