(3JMOjGJ GdRYGeI (B/ s - (3chRjS LjeSs; (3HhRfQ hHGQis; (3LhQL NhQi (B((3eJQLe(B)s; (3hdje LHQs ([S.N] : (3eQcR GdcJH GdGQOfi , s, 1989)
Keywords: (3Yde GdfaSs; (3GdLhGfH GdfaSjIs; (3Yde GdfaS GdSjGSis; (3GdeeGQSI GdSjGSjIs