(3jhSa ai eUQ (B/ s - (3efXeI GdGee GdeJMOI ddGWaGds ([S.N] : (3efXeI GdGee GdeJMOI ddGWaGd , s, 1990)
Keywords: (3GdGWaGds; (3GdYfGjI GdUMjIs; (3efXeI GdGee GdeJMOI ddGWaGds