(3GdYdGbGJ GdHjRfWjI GdQhSjI ai YgO GdGSQI GdebOhfjI (B( 867_ 1056(3e (B) / s - (3Ydjg YHOGdSejY GdLfRhQis ([S.N] : (3ecJHI GdGfLdhGdeUQjI , s, 1989)
Keywords: (3JGQjNs; (3GdYdGbGJ GdNGQLjIs; (3QhSjGs; (3GdYUhQ GdhSWis; (3MVGQI GdYUhQ GdhSWis; (3GdGeHQGWhQjI GdHjRfWjIs