"Singles Charts Archive Search". Billboard. Prometheus Global Media. Archived from the original on May 11, 2011. Retrieved July 27, 2012. Note: User must manually input the correct search information to obtain the sourced information. Type in Casting Crowns in the Artist category and Courageous in the Single Title category. Select the desired chart and click on 'All weeks' in the Date category. Then, press 'Submit'.
"Singles Charts Archive Search". Billboard. Prometheus Global Media. Archived from the original on May 11, 2011. Retrieved July 27, 2012. Note: User must manually input the correct search information to obtain the sourced information. Type in Casting Crowns in the Artist category and Courageous in the Single Title category. Select the desired chart and click on 'All weeks' in the Date category. Then, press 'Submit'.
"Charts Legend". Billboard. Prometheus Global Media. Archived from the original on July 9, 2012. Retrieved June 27, 2012.