(3WQb GdWYf HbQGQGJ hba Ch eJGHYI GdJfajP GdUGOQI aj GdeYGedI GdJfajPjI (B: s (3OQGSI aj eTGcd (B. . . / s - (3WhHjG, HjGQs ((3HjQhJ (B:s (3GdMdHj,s, 2000)
Keywords: (3GdbGfhf GdeOfjs; (3GdJHYI GdeOfjIs; (3GdELQGAGJ GdeOfjIs