(3ebOeI aj GdcjejGA GdYVhjI s - (3efSj(B. (3YQSGf GQTjOs; (3GdTQjOI(B. (3eMeO TQja cdjHs ((3OGQ GdeSJbHd ddfTQ hGdJhRjYs (3YeGfs, 1979)
Keywords: (3GdcjejGA s; (3GdcjejGA GdYVhjI s