Alaayedi, M., H. Mahmood, and A. Saeed. “THE ENHANCEMENT EFFECT OF CASTOR OIL ON THE PERMEABILITY OF FLURBIPROFEN AS TRANSDERMAL GEL”. International Journal of Applied Pharmaceutics, vol. 10, no. 1, Jan. 2018, pp. 140-4, doi:10.22159/ijap.2018v10i1.23348.