(3JQHjI Wad GdQhVI(B- (3GdGgejI hGdGJLGgGJ GdOhdjI (B/ s - (3RfGO GdNWjHs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1992)
Keywords: (3GdJQHjIs; (3GdGWaGds; (3QjGV GdGWaGds; (3JYdje GdGWaGds; (3eOGQS GdMVGfIs