月刊IKKI 2012年7月号 [Monthly Ikki July 2012 issue] (in Japanese). Shogakukan. Archived from the original on February 18, 2013. Retrieved September 7, 2012.
月刊IKKI 2012年8月号 [Monthly Ikki August 2012 issue] (in Japanese). Shogakukan. Archived from the original on February 18, 2013. Retrieved September 7, 2012.
人類は衰退しました 1 [Jinrui wa Suitai Shimashita 1] (in Japanese). Shogakukan. Archived from the original on November 29, 2014. Retrieved August 3, 2020.
人類は衰退しました 9 [Jinrui wa Suitai Shimashita 9] (in Japanese). Shogakukan. June 18, 2014. Archived from the original on February 17, 2017. Retrieved February 15, 2017.
人類は衰退しました 平常運転 [Jinrui wa Suitai Shimashita Heijō Unten] (in Japanese). Shogakukan. December 18, 2014. Archived from the original on March 21, 2016. Retrieved February 15, 2017.
人類は衰退しました 未確認生物スペシャル [Jinrui wa Suitai Shimashita Mikakunin Seibutsu Special] (in Japanese). Shogakukan. September 16, 2016. Archived from the original on February 17, 2017. Retrieved February 15, 2017.
人類は衰退しました 1 [Jinrui wa Suitai Shimashita 1] (in Japanese). Shogakukan. Archived from the original on November 4, 2013. Retrieved September 7, 2012.
人類は衰退しました 6 [Jinrui wa Suitai Shimashita 6] (in Japanese). Shogakukan. March 16, 2012. Archived from the original on November 4, 2013. Retrieved September 7, 2012.
人類は衰退しました 2 [Jinrui wa Suitai Shimashita 2] (in Japanese). Shogakukan. Archived from the original on November 5, 2013. Retrieved August 3, 2020.
人類は衰退しました 3 [Jinrui wa Suitai Shimashita 3] (in Japanese). Shogakukan. Archived from the original on February 17, 2017. Retrieved August 3, 2020.
人類は衰退しました 4 [Jinrui wa Suitai Shimashita 4] (in Japanese). Shogakukan. Archived from the original on September 6, 2013. Retrieved August 3, 2020.
人類は衰退しました 5 [Jinrui wa Suitai Shimashita 5] (in Japanese). Shogakukan. Archived from the original on February 16, 2017. Retrieved August 3, 2020.
人類は衰退しました 6 [Jinrui wa Suitai Shimashita 6] (in Japanese). Shogakukan. Archived from the original on February 15, 2017. Retrieved August 3, 2020.
人類は衰退しました 7 [Jinrui wa Suitai Shimashita 7] (in Japanese). Shogakukan. July 18, 2012. Archived from the original on February 18, 2017. Retrieved February 15, 2017.
人類は衰退しました 8 [Jinrui wa Suitai Shimashita 8] (in Japanese). Shogakukan. February 19, 2013. Archived from the original on February 16, 2017. Retrieved February 15, 2017.
月刊IKKI 2012年7月号 [Monthly Ikki July 2012 issue] (in Japanese). Shogakukan. Archived from the original on February 18, 2013. Retrieved September 7, 2012.
人類は衰退しました のんびりした報告 [Jinrui wa Suitai Shimashita: Nonbirishita Hōkoku] (in Japanese). Shogakukan. Archived from the original on March 2, 2014. Retrieved September 7, 2012.
月刊IKKI 2012年8月号 [Monthly Ikki August 2012 issue] (in Japanese). Shogakukan. Archived from the original on February 18, 2013. Retrieved September 7, 2012.
人類は衰退しました 1 [Jinrui wa Suitai Shimashita 1] (in Japanese). Shogakukan. Archived from the original on November 29, 2014. Retrieved August 3, 2020.
人類は衰退しました 9 [Jinrui wa Suitai Shimashita 9] (in Japanese). Shogakukan. June 18, 2014. Archived from the original on February 17, 2017. Retrieved February 15, 2017.
人類は衰退しました 平常運転 [Jinrui wa Suitai Shimashita Heijō Unten] (in Japanese). Shogakukan. December 18, 2014. Archived from the original on March 21, 2016. Retrieved February 15, 2017.
人類は衰退しました 未確認生物スペシャル [Jinrui wa Suitai Shimashita Mikakunin Seibutsu Special] (in Japanese). Shogakukan. September 16, 2016. Archived from the original on February 17, 2017. Retrieved February 15, 2017.
人類は衰退しました 1 [Jinrui wa Suitai Shimashita 1] (in Japanese). Shogakukan. Archived from the original on November 4, 2013. Retrieved September 7, 2012.
人類は衰退しました 6 [Jinrui wa Suitai Shimashita 6] (in Japanese). Shogakukan. March 16, 2012. Archived from the original on November 4, 2013. Retrieved September 7, 2012.
人類は衰退しました 2 [Jinrui wa Suitai Shimashita 2] (in Japanese). Shogakukan. Archived from the original on November 5, 2013. Retrieved August 3, 2020.
人類は衰退しました 3 [Jinrui wa Suitai Shimashita 3] (in Japanese). Shogakukan. Archived from the original on February 17, 2017. Retrieved August 3, 2020.
人類は衰退しました 4 [Jinrui wa Suitai Shimashita 4] (in Japanese). Shogakukan. Archived from the original on September 6, 2013. Retrieved August 3, 2020.
人類は衰退しました 5 [Jinrui wa Suitai Shimashita 5] (in Japanese). Shogakukan. Archived from the original on February 16, 2017. Retrieved August 3, 2020.
人類は衰退しました 6 [Jinrui wa Suitai Shimashita 6] (in Japanese). Shogakukan. Archived from the original on February 15, 2017. Retrieved August 3, 2020.
人類は衰退しました 7 [Jinrui wa Suitai Shimashita 7] (in Japanese). Shogakukan. July 18, 2012. Archived from the original on February 18, 2017. Retrieved February 15, 2017.
人類は衰退しました 8 [Jinrui wa Suitai Shimashita 8] (in Japanese). Shogakukan. February 19, 2013. Archived from the original on February 16, 2017. Retrieved February 15, 2017.
人類は衰退しました のんびりした報告 [Jinrui wa Suitai Shimashita: Nonbirishita Hōkoku] (in Japanese). Shogakukan. Archived from the original on March 2, 2014. Retrieved September 7, 2012.
月刊IKKI 2012年10月号. Neowing (in Japanese). Archived from the original on September 18, 2020. Retrieved September 18, 2020.