(3GdecJHI GdLGeYjI(B: (3fTGJgG(B, (3JWhQgG(B, (3GgOGagG(B, (3hXGFagG (B/ s - (3SYjO GMeO MSfs ([S.N] : (3OGQ GdLjd , s, 1992)
Keywords: (3GdecJHGJ GdLGeYjIs