(3GHh eSde GdNQGSGfj (B: s (3QhGjI JDQN dSbhW GdOhdI GdGehjI hbjGe GdOhdI GdYHGSjI (B/ s - (3LQLj RjOGf, LQLj Hf MHjH RjOGf, s 1861-1914(3, s ((3HjQhJ, dHfGf (B: s (3efThQGJ OGQ ecJHI GdMjGI, s, 1970)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B192.s
Keywords: (3GdbUU GdJGQjNjI GdYQHjIs -- (3GdbQf (B20.s