(3ef OGhO Edi LhdjGJ (B: s (3GdeDSSI GdYScQjI GdESQGFjdjI (B: (3GdacQ h GdJfXje (B/ s - (3QaYJ, fGOjg YR GdOjfs; (3MehOI, YeQh ceGds ((3GdbGgQI (B:s (3SjfG ddfTQ,s, 1991)
Keywords: (3ESQGFjds; (3GdTDhf GdYScQjIs; (3GdbhGJ GdeSdMIs