(3GdYjf ai GdTYQ GdYQHi (B/ s - (3Ydi Tdbs ([ (3HjQhJ (B] : s (3OGQ GdGfOdS ddGYdGe , s, 1984)
Keywords: (3GdTYQ GdYQHis; (3GdTYQ GdhUais