Irawan, Ade, Endang Widi Winarni, and Abdul Muktadir. 2026. “Developing Canva-Assisted Problem-Based Learning Worksheets to Improve Fourth Graders’ Cognitive Skills in Science”. Journal of Integrated Elementary Education 6 (1):308-26. https://doi.org/10.21580/jieed.v6i1.30377.