(3CSGSjGJ aj Yde Gdadc h GdJbGhje (B/ s - (3GdWGFj, eMeO HGSds ((3GQHO (B:s (3GdeDda,s, 2001)
Keywords: (3Yde Gdadcs; (3GdJhbjJs; (3GdJbGhjes