(3bGehS GdYGFdI GdWHj (B:s (3cJGH dG jSJZfi Yfg Cj aQO ef GdCSQI (B/s - (3QaYJ , eMeO s ((3HjQhJ (B:s (3OGQ hecJHI GdgdGd ddWHGYI hGdfTQ,s, 1985)
Keywords: (3GdUMI GdTNUjIs -- (3bGehS s