Liao, Y. et al. 2025. Hierarchical-Synergistic PDCA Closed-Loop: Construction and Optimization of University Teaching Supervision System—A Case Study of Zhengzhou University. Innovations in Pedagogy and Technology. 2, 2 (Mar. 2025), 103–114. DOI:https://doi.org/10.63385/ipt.v2i2.396.