(3bUU bUjQI (B/ s - (3dWai GdNhdis ((3GdbGgQI (B: s (3eQcR GdGgQGe ddJQLeI hGdfTQ , s, 1987)
Keywords: (3GdGOH GdYQHis; (3GdbUU GdYQHjIs; (3GdbUU GdbUjQIs