乃木坂春香の秘密 同人誌はじめました▼ [Haruka Nogizaka's Secret: Dōjinshi Hajimemashita] (in Japanese). ASCII Media Works. Archived from the original on August 19, 2010. Retrieved August 10, 2010.
家庭用ゲーム開発実績 [Home Game Development Record] (in Japanese). Vridge. Archived from the original on May 21, 2013. Retrieved April 14, 2013.
乃木坂春香の秘密 同人誌はじめました▼ [Haruka Nogizaka's Secret: Dōjinshi Hajimemashita] (in Japanese). ASCII Media Works. Archived from the original on August 19, 2010. Retrieved August 10, 2010.