(3YQGHj RYje GdadGMjf (B: s (3eSQMjI TYQjI (B/ s - (3GdTQbGhj, YHO GdQMefs ((3GdbGgQI (B:s (3eQcR GdGgQGe ddfTQ,s, 1985)
Keywords: (3GdeSQMjGJ GdYQHjIs; (3eUQs