(3ai XdGd GdbQGf(B: (3QDjI GSJTGQbjI aQfSjI (B/ s - (3Ghdjajf cGQjgs; (3eMeO QVG YLGL (B((3eJQLe(B)s ([S.N] : (3GdRgQGA ddGYdGe GdYQHi , s, 1993)
Keywords: (3GdGNhGf GdeSdehfs