(3GdSjGSGJ GdeGdjI hGdfbOjI heOi EecGfjI GdCNP HgG ai GdGbJUGO GdESdGei (B/s - (3eMeO YHO GdefYe YaQs ((3GdbGgQI (B:s (3eWGHY GdGJMGO GdOhdi ddHfhc GdGSdGejI,s, 1981)
(3HHdjhLQGajG(B: (3UaMGJ (B112-115.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdHfhc GdGSdGejIs; (3GdeGdjI GdYGeI hGdJTQjY GdVQjHis