(3EXgGQ GdMb (B/s - (3GdcjQGfhj GdgfOj, QMeJ Gddg Hf Ndjd GdQMef,s 1233-1308 (3gLQjG(B.s; (3edcGhj, eMeO CMeO eMeO YHO GdbGOQs ((3GdQjGV (B:s (3QFGSI EOGQI GdHMhK GdYdejI hGdGaJGA,s, 1990)
Keywords: (3GdESdGe hGdeSjMjIs; (3GdOjGfGJ GdebGQfIs; (3GdESdGe hGdOjGfGJ GdCNQis