(3Yde GdGLJeGY GdGbJUGOj (B:s (3heTcdGJ GdUfGYI hGdJfejI (B/s - (3bHGQj eMeO GSeGYjds ((3GdGScfOQjI (B:s (3efTCI GdeYGQa,s, 1979)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdeGdjI GdYGeI hGdJTQjY GdVQjHjs