(3GdJfGRd Yf GdTchi cSHH NGU dGfbVGA GdOYhi GdLfGFjI (B:s (3OQGSI JMdjdjI JGUjdjI (B/s - (3eMeO YHOGdMcje ecj s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI (B,s, 1999)
(3jJVef bGFeI GdeQGLY HGddZg GdYQHjI U (B274s
(3jJVef bGFeI GdeQGLY HGddZg GdaQfSjI U (B285s
Keywords: (3GdbGfhf GdLfGFj s; (3GdTchis