Raoji emphasize the importance of 9 planetary stotras. Their meanings and powers are well hidden in each stotras. All the 9 stotras not just for Graha Shanti, but also for what kinds of effects, results each planets would give;
You can go to (for Planetary stotras recited by Raoji):
https://www.youtube.com/watch?v=thc-IPv7ppk