(3GdGfhGA aj ehGSe GdYQH (B/s - (3GdOjfhQj , GHj eMeO YHO Gddg Hf eSde Hf bJjHI s ((3HZOGO (B: s (3OGQ GdTDhf GdKbGajI GdYGeI ,s, 1988)
Keywords: (3GdchGcH s