(3GdeQGcR GdXGgQI hGdaYdjI aj GdbGfhf GdGOGQi (B/ s - (3eLOj YR GdOjf jhSas ([(3ecGf GdfTQ ZjQ eMOO(B] : s [(3GdfGTQ ZjQ eMOO(B](3, s, 1992)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3eMceI GdbVGA GdEOGQjs; (3GdbQGQJ GdEOGQjIs