(3JGQjN GdfXe GdbGfhfjI hGdGLJeGYjI(B/s - (3Uhai MSf GHhWGdH(B.s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1973)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdfXe GdbGfhfjIs; (3adSaI GdbGfhfs