Qu, Yunxia, et al. “Engineering Cognitive Intervention: Leveraging ‘Productive Failure’ in PH Process Control to Catalyze Conceptual Change and Development of Pedagogical Content Knowledge (PCK)”. International Core Journal of Engineering, vol. 12, no. 9, Sept. 2026, pp. 66-76, https://doi.org/10.6919/ICJE.202609_12(9).0008.