(3OQGSGJ aj JGQjN GdYdhe YfO GdYQH (B/ s - (3YHO GdQMef,MceJ fLjH,s ((3GdehUd,fjfhi,GdYQGb (B: s (3OGQ GHf GdGKjQ ddWHGYI hGdfTQ(B/ (3LGeYI GdehUd,s, 1977)
(3jJVef LOhd GdNWChGdUhGH(B.s
(3jJVef agGQS GdGYdGe hGdehGVY hGdeUfaGJ(B.s
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdYdhes -- (3JGQjNs