記事内の引用について
Man in China so dismayed wife spent over S$58,000 on 11.11 sale he tried to kill himself(mothership)より
https://mothership.sg/2019/11/news-china-11-11-sale-man-tries-kills-himself/

Online Shopping Industry in China - Market Research Report(IBISWorld)より
https://www.ibisworld.com/china/market-research-reports/online-shopping-industry/

IN CHINA A BIG FIGHT IS COMING ON THE ONLINE SHOPPING WORLD！(Marketing China)より
https://www.marketingtochina.com/in-china-a-big-fight-is-coming-on-the-online-shopping-world/

What is China's Singles' Day and how does it compare to Black Friday?(The Telegraph)より
https://www.telegraph.co.uk/black-friday/0/what-is-chinas-singles-day-and-how-does-it-compare-to-black-frid/

中国・9都市の平均給与、13万円超 北京、広州など(AFPBB News)より
https://www.afpbb.com/articles/-/3192926