(3fXQjI GddZI ai GdfbO GdYQHi (B/ s - (3YHOGdMcje QGVis ([S.N] : (3ecJHI GdNGfLi , s, 1980)
Keywords: (3GddZI GdYQHjIs; (3GdHdGZI GdYQHjIs; (3JGQjN hfbOs