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manga-sanctuary.com
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planetebd.com
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Glasstetter, Bernd (January 13, 2013). "Comic-Besprechung - Manhole 1". Splash Comics (in German). Archived from the original on March 5, 2024. Retrieved August 22, 2023.
Glasstetter, Bernd (January 13, 2013). "Comic-Besprechung - Manhole 1". Splash Comics (in German). Archived from the original on March 5, 2024. Retrieved August 22, 2023.
"Manhole Vol.1". Manga News (in French). May 6, 2008. Archived from the original on August 20, 2023. Retrieved August 22, 2023.
Géreaume, Mickaël (April 23, 2007). Manhole T1 Review (in French). Planete BD. Archived from the original on August 21, 2023. Retrieved August 22, 2023.
"Critique Manga Manhole". Manga Sanctuary (in French). February 7, 2012. Archived from the original on August 20, 2023. Retrieved August 22, 2023.