Nguyen, Le Chi, Nguyen Van Ngo, Nguyen Thi Lan Ngoc, and Mai Van Hung. 2025. “Impact of Problem-Based Learning on Critical Thinking: An Exploration With Middle School Students”. International Journal of Innovative Research and Scientific Studies 8 (2):2809-19. https://doi.org/10.53894/ijirss.v8i2.5819.