(3eLehYI GdbhGfjf GdUMjI hGdbQGQGJ hGdJYejeGJ GdefaPI dgG GdUGOQI HOhdI GdchjJ (B/ s - (3GdeRjfj, CMeO YHO GdYRjR s ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3GdfGTQ ZjQ eMOO(B](3,s, 1900)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdUMI GdYGeIs -- (3bhGfjf hJTQjYGJs -- (3GdchjJs; (3GdQYGjI GdUMjIs -- (3bhGfjf hJTQjYGJ s -- (3GdchjJs; (3GdWHs -- (3bhGfjf hJTQjYGJs -- (3GdchjJs