Pedro Cleto (November 15, 2004). "Fenómeno Manga ameaça explosão". bedeteca.com (in Portuguese). Archived from the original on December 14, 2014. Retrieved December 14, 2014.
books.com.tw
轟天高校生 7 (in Chinese). Archived from the original on September 28, 2011. Retrieved March 25, 2011.
boxofficemojo.com
"Spriggan". Box Office Mojo. Archived from the original on May 23, 2021. Retrieved May 23, 2021.
"Striker" (in Spanish). Archived from the original on August 24, 2011. Retrieved March 24, 2011.
Pedro Cleto (November 15, 2004). "Fenómeno Manga ameaça explosão". bedeteca.com (in Portuguese). Archived from the original on December 14, 2014. Retrieved December 14, 2014.