Cifaldi, Frank (August 2004). "Spotlight: Secret Ties". Lostlevels.org. Lost Levels. Archived from the original on April 3, 2016. Retrieved October 19, 2016.
Cifaldi, Frank (August 2004). "Spotlight: Secret Ties". Lostlevels.org. Lost Levels. Archived from the original on April 3, 2016. Retrieved October 19, 2016.