(3GYdGe GdfHdGA HJGQjN MdH GdTgHGA (B:s - (3GdMdHj ,eMeO QGZH Hf eMehO Hf gGTe GdWHGNs ((3MdH (B:s (3efThQGJ OGQ Gdbde GdYQHj ,s, 1988)
Keywords: (3GdGfSGH GdYQHjI s