(3OQGSGJ aj JGQjN eOfjI SjJg GdESdGejI (B/ s - (3GdWjHj, Cejf Jhajbs ((3WQGHdS (B((3djHjG(B) :s, 1989)
Keywords: (3JGQjN GdCfOdSs; (3GdMVGQI GdESdGejIs; (3SHJgs