(3RjfH GdGOjH gjcd Ydi GdTGTI GdeUQjI (B/ s - (3eOchQ KGHJs; (3GfSjI GHhGdfUQs ((3GdbGgQI (B: s (3GdeLdS GdGYdi ddKbGaI , s, 1996)
Keywords: (3GdGadGe GdSjfeGFjIs; (3GdSjfeG hGdGOHs; (3GdSjfeG (B- (3eUQs