(3GdhLjR aj Yde hXGFa GdCYVGA GdajShdhLj (B/ s - (3aQjMGJ, MceJ YHO GdcQjes ((3YeGf (B:s (3OGQ GdHTjQ ddfTQ,s, 1986)
Keywords: (3LSe GdEfSGfs; (3Yde GdJTQjMs