(3GdTYQ GdYQHj aj XdGd OYhI GdEeGe eMeO YHO GdhgGH (B/ s - (3GdYdj, YHO Gddg GdMGeOs ((3GdQjGV (B:s (3OGQ GdcJGH GdSYhOj,s, 1986)
Keywords: (3GdSYhOjIs; (3GdTYQ GdYQHjs