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DXY.cn. (January 24, 2021). Effect of actions intended to mitigate sleeping issues in China as of December 2020 [Graph]. In ÀÖ²¥´«Ã½app×îа汾. Retrieved August 20, 2026, from /statistics/1288795/china-results-of-actions-mitigating-sleeping-problem/
DXY.cn. "Effect of actions intended to mitigate sleeping issues in China as of December 2020." Chart. January 24, 2021. ÀÖ²¥´«Ã½app×îа汾. Accessed August 20, 2026. /statistics/1288795/china-results-of-actions-mitigating-sleeping-problem/
DXY.cn. (2021). Effect of actions intended to mitigate sleeping issues in China as of December 2020. ÀÖ²¥´«Ã½app×îа汾. ÀÖ²¥´«Ã½app×îа汾 Inc.. Accessed: August 20, 2026. /statistics/1288795/china-results-of-actions-mitigating-sleeping-problem/
DXY.cn. "Effect of Actions Intended to Mitigate Sleeping Issues in China as of December 2020." ÀÖ²¥´«Ã½app×îа汾, ÀÖ²¥´«Ã½app×îа汾 Inc., 24 Jan 2021, /statistics/1288795/china-results-of-actions-mitigating-sleeping-problem/
DXY.cn, Effect of actions intended to mitigate sleeping issues in China as of December 2020 ÀÖ²¥´«Ã½app×îа汾, /statistics/1288795/china-results-of-actions-mitigating-sleeping-problem/ (last visited August 20, 2026)
Effect of actions intended to mitigate sleeping issues in China as of December 2020 [Graph], DXY.cn, January 24, 2021. [Online]. Available: /statistics/1288795/china-results-of-actions-mitigating-sleeping-problem/
