(3eMV GdUhGH aj aVGFd CejQ GdeDefjf YeQ Hf GdNWGH (B/s - (3GHf GdeHQO, jhSa Hf MSf Hf CMeO,s 840-909 (3g`(B.s; (3GdaQjM, YHO GdYRjR Hf eMeO Hf YHO GdeMSfs ((3GdQjGV , GdSYhOjI (B:s (3CVhGA GdSda,s, 2000)
Keywords: (3YeQ Hf GdNWGH Hf fajd GdbQTj,s -- 40 (3b(B. (3g`(B-23 (3g`(B.s; (3GdNdaGA GdQGTOhfs -- (3aVGFds; (3GdUMGHI hGdJGHYhfs -- (3aVGFds