(3aj GdLghO GdeSQMjI GdEZQjbjI GdChQhHjI GdYQHjI (B: s (3ef GdfbGT Edi GdMcje (B/ s - (3jGZj, YHO GdQMefs ((3GdchjJ (B:s (3TQcI cGXeg,s, 1987)
Keywords: (3GdeSQMjGJs; (3GdJGQjN GdCOHjs; (3GdfbO GdCOHjs