A. Hussain, Saad, et al. “Effect of Silibinin in Lowering the Intraocular Pressure in Normotensive Rabbits: Interaction With Betaxolol”. Iraqi Journal of Pharmaceutical Sciences, vol. 16, no. 2, Mar. 2017, pp. 39-44, https://doi.org/10.31351/vol16iss2pp39-44.