URLs

• https://www.pixiv.net/users/26900
• https://www.pixiv.net/stacc/yamamoto_takeo
• https://twitter.com/yamamoto_takeo
• https://twitter.com/intent/user?user_id=124285463
• https://sadakichidou.booth.pm
• https://nijie.info/members.php?id=335060
• https://pawoo.net/@yamamoto_takeo
• https://skeb.jp/@yamamoto_takeo
• https://mixi.jp/show_friend.pl?id=3176446
• https://www.amazon.co.jp/-/e/B004LVVR0G/
• https://www.melonbooks.co.jp/circle/index.php?circle_id=20839
• https://illust.daysneo.com/illustrator/yamamoto_takeo/
• http://www.interq.or.jp/yamamoto/sadakich/
• https://market.orilab.jp/user/61f4f21b39b12
• https://skima.jp/profile?id=5305