(3GdSeGMI ai GdESdGe hGdeSjMjI (B/s - (3EHQGgje GMeO Gdhbais ((3GdbGgQI (B:s (3OGQ GdacQ GdYQHi,s, 1990)
(3jTJed Ydi EQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdESdGe hGdeSjMjIs