1. The Japanese Hikikomori Phenomenon: Acute Social Withdrawal among Young People
2. Cabinet Office. White Paper on Children and Young People.2019.https://www8.cao.go.jp/youth/english/whitepaper/2019/pdf/2019.pdf. Accessed April 24 2021.
3. Does the ‘hikikomori’ syndrome of social withdrawal exist outside Japan? A preliminary international investigation
4. National Institute of Population and Social Security Research. Summary of population projection.2017.http://www.ipss.go.jp/pp‐zenkoku/j/zenkoku2017/pp29_gaiyou.pdf(in Japanese). Accessed April 24 2021.
5. NPO houjin KHJ Zenkoku hikikomori kazoku kai rengou kai. Tyouki kounennrei ka suru syakaiteki hikikomori sya heno taiou to yobou notame no [hikikomori tiiki sien taisei wo sokusin suru kazoku sien] no arikata ni kansuru kenkyu. Chiiki houkatu sien center ni okeru 8050 jirei heno taiou ni kansuru tyousa houkoku sho.2019. Retrieved fromhttps://www.mhlw.go.jp/content/12200000/000525388.pdf(in Japanese). Accessed April 24 2021.