Jarrett Williams (English Wikipedia)

Oni Press (July 21, 2010). "Super Pro K.O.!". Oni Press. Archived from the original on August 30, 2011. Retrieved October 25, 2012.
Oni Press (November 2, 2011). "Chaos in the Cage". Oni Press. Archived from the original on July 16, 2012. Retrieved October 25, 2012.
Oni Press (March 9, 2011). "Yo Gabba Gabba Comic Book Time". Oni Press. Archived from the original on May 16, 2012. Retrieved October 25, 2012.

seqalab.com (Global: low place; English: low place)

"Lunar Boy Vol. 2 by Jarrett Williams". Seqa Lab. Archived from the original on May 7, 2008. Retrieved October 25, 2012.

"Oni Delivers a Knock-Out With SUPER PRO K.O". Newsarama.com. Archived from the original on September 2, 2010. Retrieved October 25, 2012.
"Lunar Boy Vol. 2 by Jarrett Williams". Seqa Lab. Archived from the original on May 7, 2008. Retrieved October 25, 2012.
"Weighing in at 256 pages: Jarrett Williams talks Super Pro K.O. | Robot 6 @ Comic Book Resources – Covering Comic Book News and Entertainment". Robot6.comicbookresources.com. Archived from the original on August 27, 2011. Retrieved October 25, 2012.
Johnston, Rich (November 20, 2020). "New Rick and Morty #1 Comic in Oni Press February 2021 Solicits". Bleeding Cool. Archived from the original on November 20, 2020. Retrieved November 20, 2020.
Oni Press (July 21, 2010). "Super Pro K.O.!". Oni Press. Archived from the original on August 30, 2011. Retrieved October 25, 2012.
Oni Press (November 2, 2011). "Chaos in the Cage". Oni Press. Archived from the original on July 16, 2012. Retrieved October 25, 2012.
Oni Press (March 9, 2011). "Yo Gabba Gabba Comic Book Time". Oni Press. Archived from the original on May 16, 2012. Retrieved October 25, 2012.