(3bGfhf GdELQGAGJ GdLfGFjI (B: s (3eY JYdjb abgj JMdjdj ddfUhU hbVGA GdfbV hGdJYdjeGJ GdYGeI ddfjGHGJ (B/ s - (3MSf YdGe(B.s ((3GdEScfOQjI, eUQ (B: s (3efTCI GdeYGQa,s, 1991)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf GdELQGAGJ GdLfGFjIs; (3GdbGfhf GdLfGFjs