(3TQM YbO GdHjY aj GdbGfhf GdeOfj GdchjJj (B: s (3OQGSI ebGQfI (B/ s - (3GdUQGa , YHGS s ((3GdchjJ (B: s (3OGQ GdHMhK , s, 1975)
Keywords: (3GdYbhO (B- (3bGfhf GdeOfj s