(3eJGHYI JfajP NWW GdJfejI (B: s (3fMh fXGe eJcGed h aYGd (B/ s - (3YRjR, hdjOs ((3YeGf (B:s (3GdefXeI GdYQHjI ddYdhe GdEOGQjI,s, 1986)
Keywords: (3GdHdOGf GdYQHjIs; (3GdEbJUGOs; (3GdJNWjW GdEbJUGOjs; (3GdSjGSI GdEbJUGOjIs