(3GdEMUGA dWdGH GdOQGSGJ GdGbJUGOjI hGdEOGQjI (B/s - (3GdUjGO, LdGd eUWais 1356 (3gLQjG(B-s; (3QHjY, YHO GdMejO eMeOs; (3SeQI, YGOds ((3LOI (B- (3GdSYhOjI (B:s (3OGQ JgGeI,s, 1989)
Keywords: (3QjGVjGJ EMUGFjIs -- (3GdJYdHe GdYGdjs; (3GdWQb GdEMUGFjIs; (3GdEMUGA GdJWHjbjs; (3GdGbJUGOs -- (3CSGdjH EMUGFjIs