(3GdJhGRf GdGbJUGOj aj GdYbO GKfGA JfajPg (B/ s - (3fGLj, ZGRj YHO GdQMef, s ((3HZOGO, GdYQGb (B: s (3hRGQI GdYOd, eQcR GdHMhK GdbGfhfjI (B986.s, 1986)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B189-193.s
Keywords: (3GdYbhO (B((3bGfhf eOfj(B)s -- (3GdYQGb(B.s