. (3GdeDSSGJ GdYGeI aj dHfGfs - . (3GdMdHj, MSfs; Hasan Halaby ((3HjQhJs (3efThQGJ YhjOGJs, 1974)
* (3edMb aj BNQ GdcJGHs
Keywords: (3GdeDSSGJ GdYGeIs -- (3dHfGfs