The simplest way to do this would be to use the Section widget in your desired widget area. Once you've set up the Section widget, simply click on the "Pages" tab and select only the webpages that you wish your widget to appear in.
The simplest way to do this would be to use the Section widget in your desired widget area. Once you've set up the Section widget, simply click on the "Pages" tab and select only the webpages that you wish your widget to appear in.