Alrubaiee, T.A.S. and Ahmed, S.S. 2021. Personality traits and their relation to blood types of university students according to the Freiberg scale: (Empirical study). Al-Adab Journal. 2, 137 (Jun. 2021), 195–232. DOI:https://doi.org/10.31973/aj.v2i137.1634.