(3GdYfGUQ GdJQGKjI ai GdQhGjI GdYQHjI ai eUQ (B: (3OQGSI fbOjI (B(1986-1914) / s - (3eQGO YHOGdQMef eHQhcs ([S.N] : (3OGQ GdeYGQa , s, 1991)
Keywords: (3GdGOH GdYQHis; (3GdYUQ GdMOjKs; (3GdbUI GdYQHjIs; (3JGQjN hfbOs