(3GdJNWjW GdGSJQGJjLi ai GdefXeGJ GdQbejI (B/s - (3GjeGf UGdM YHOGdaJGMs ((3GdbGgQI (B: s (3GjHjS che ddfTQ hGdJhRjY ,s, 2007)
Keywords: (3GdGbJUGO GdQbei s; (3GdefXeGJ GdQbejI s; (3GdGOGQI s; (3GdGOGQI GdGdcJQhfjI s; (3GdaSGO GdGOGQi s; (3GdJLGQI GdGdcJQhfjI s