(3MhGaR GdYed Hjf GdESdGe hGdfXQjGJ GdhVYjI (B/s - (3GdEHQGgje, eMeO YbdIs ((3YeGf, GdGQOf (B:s (3ecJHI GdQSGdI GdMOjKI,s, 1988)
(3HHdjhLQGajI (B: (3U(B. 161-170.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdehXahfs -- (3MhGaRs; (3EOGQI GdCaQGOs; (3GdESdGe hGdYed hGdYeGds; (3GdESdGe hMhGaR GdEfJGLs