(3GdSfI h ecGfJgG aj GdJTQjY GdESdGej (B/ s - (3GdSHGYj, eUWais ((3HjQhJ (B:s (3OGQ GdhQGb,s, 2000)
Keywords: (3GdTQjYI GdESdGejI(B.s; (3GdSfI GdfHhjIs; (3GdMOjK GdTQja(B.s