Anwer, K. A., & Ahmad, K. A. (2021). Reasons for the scientific tours of Andalusians scientists to the Islamic East in the (7th and 8th A.H/13th and 14th AD). Journal of University of Human Development, 7(4), 43–54. https://doi.org/10.21928/juhd.v7n4y2021.pp43-54