(3JGQjN ChQhHG GdMOjK h GdeYGUQ (B/s - (3MSf CHhYdjI , YHO GdaJGM s ((3GdLRGFQ (B:s (3OjhGf GdWHhYGJ GdLGeYjI ,s, 1984)
Keywords: (3GdeYGUQ s; (3ChQhHG s; (3GdMOjK s; (3JGQjNs