(3MQjI GdbGVj GdLfGFj aj Jchjf YbjOJg (B:s (3OQGSI ebGQfI (B/s - (3YHO Gddg, ehSi eSYhO QMheIs ((3eUQGJI, djHjG (B:s (3GdOGQ GdLeGgjQjI ddfTQ hGdJhRjY hGdEYdGf,s, 1988)
Keywords: (3GdeMGceGJ GdLfGFjIs; (3bGfhf GdELQGAGJ GdLfGFjIs