(3eHGOF GdbGfhf GdOSJhQj hGdfXe GdSjGSjI (B/s - (3GdZGdj, ceGds ((3MdH, ShQjG (B:s (3LGeYI MdH, eOjQjI GdcJH hGdeWHhYGJ GdLGeYjI,s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdOSJhQjs -- (3ShQjGs; (3GdfXe GdSjGSjIs -- (3ShQjGs