(3GdCMcGe GdNGUI HGdeabhO (B:s (3OQGSI ebGQfI Hjf GdTQjYI GdESdGejI hGdbGfhfjf GdeUQj hGdaQfSj (B/s - (3MSf, Ydj SjOs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1984)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdeabhOhfs -- (3hVY bGfhfj, bhGfjf, EdN(B.s; (3GdbGfhf GdebGQfs; (3GdeabhO (B((3abg ESdGej(B)s; (3GdCMhGd GdTNUjIs -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3GdCMhGd GdTNUjIs -- (3bhGfjf hJTQjYGJs -- (3aQfSGs