Abd-Alrahman, S.A. and Mahmoud, M.M. 2008. Anatomical and Histological Study of the Cerebellum in cognitive modern birds species (gold-capped parrot). Al Mustansiriyah Journal of Pharmaceutical Sciences. 5, 1 (Jun. 2008), 84–91. DOI:https://doi.org/10.32947/ajps.v5i1.397.