Hanging On by a Thread (English Wikipedia)

"The Letter Black Releases Vol. 1 of Limited Edition Set". Hangout.altsounds.com. March 22, 2011. Archived from the original on March 25, 2011. Retrieved February 20, 2012.

billboard.com

"Top 30 songs of the week and most requested songs of the week". Christianrock.net. Archived from the original on February 19, 2012. Retrieved February 20, 2012.

"The Letter Black - Fire With Fire". January 29, 2011. Archived from the original on December 15, 2021. Retrieved February 20, 2012 – via YouTube.

review, Alpha Omega News Archived July 24, 2011, at the Wayback Machine
Corezine.net review^[usurped]
review^[usurped], The Christian Manifesto
"Album Review: Hanging On By A ThreadBy The Letter Black « Christian Rock 20". Archived from the original on July 16, 2011. Retrieved April 27, 2010.
"review". Christian Music Zine. Archived from the original on May 1, 2010.
review, The NewReview Archived April 26, 2010, at the Wayback Machine
RockTheCross.net review Archived May 11, 2010, at the Wayback Machine
"The Letter Black Releases Vol. 1 of Limited Edition Set". Hangout.altsounds.com. March 22, 2011. Archived from the original on March 25, 2011. Retrieved February 20, 2012.
"Top 30 songs of the week and most requested songs of the week". Christianrock.net. Archived from the original on February 19, 2012. Retrieved February 20, 2012.

"The Letter Black - Fire With Fire". January 29, 2011. Archived from the original on December 15, 2021. Retrieved February 20, 2012 – via YouTube.