(3GdeLehYI GdcGedI dbhGfjf GdGjLGQ GdeYehd HgG aj dHfGf (B/ s - (3SYO, aGQhb, s 1938- ((3HjQhJ (B[(3dHfGf(B] : s (3OGQ GdYde ddedGjjf (B974.s, 1974)
(3jJVef edGMb(B.s
(3jJVef EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdeGdc hGdeSJCLQs -- (3bhGfjf hJTQjYGJs -- (3dHfGf(B.s