(3JWhQ GdajRjGA (B/ s - (3GjfTJjf(B, (3GdHQJs; (3Gfadh(B, (3djhHhdOs; (3Ydi GdefPQ (B((3eJQLe(B)s ([S.N] : (3GcGOjejG , s, 1993)
Keywords: (3JGQjNs; (3GdajRjGAs; (3GdejcGfjcGs; (3GdfSHjIs; (3GdLGPHjI GdGQVjIs