Analyzing the Impact of COVID-19 on Education: A Comparative Study Based on TOEFL Test Results. - Puti Xu; Wei Hong; Jiao Yin 003; Kate N. Wang 001; Yanchun Zhang (HIS, 2023)

The Impact of COVID-19 on Global GMAT Test-Taking Patterns: A Statistical Analysis. - Puti Xu; Jiao Yin 003; Jinli Cao; Yanchun Zhang (HIS, 2024)