(3GdbOS h GdMGd GdadSWjfj h bQGAGJ aj GdGef Gdbhej GdYQHj (B: s (3bQGAGJ aj GdCef Gdbhej GdYQHj (B/ s - (3GdcjdGfj, gjKes; (3ShjO, eMehOs ((3YeGf (B:s (3OGQ GdaGQS,s, 1999)
Keywords: (3JGQjN adSWjfs; (3GdbOSs; (3GdYdGbGJ GdOhdjIs