Jia, Shuangyue, Ying Wang, Qingyu Li, and Yan Zhang. 2024. “Discussion and Countermeasures on the Application of Health Code in the Routine Prevention and Control of COVID-19: Take China As an Example”. International Journal of Social Sciences and Public Administration 3 (1): 129-34. https://doi.org/10.62051/ijsspa.v3n1.20.