(3eYGQc aGUdI aj GdJGQjN GdESdGej (B41-132(3g` (B/ s - (3NaGLj, YHO GdefYes; (3TQa, YHO GdYRjRs ((3GdbGgQI (B:s (3GdOGQ GdeUQjI GddHfGfjI,s, 1992)
Keywords: (3JGQjN GdYQHs; (3GdCehjhfs; (3GdCfOdSs