(3eUQ ai aLQ GdGSdGe ef GdaJM GdYQHi Gdi bjGe GdOhdI GdWhdhfjI (B/ s - (3SjOI GSeGYjd GdcGTas ([S.N] : (3OGQ GdfgVI GdYQHjI , s, 1970)
Keywords: (3eUQs; (3JGQjNs; (3GdOhdI GdWhdhfjIs; (3GdaJM GdGSdGeis