Zuzano, F. ., E. . Musdi, and L. Lufri. “Designing a Hypothetical Learning Trajectory With Open-Ended Tasks: An Approach to Teaching Angle Measurement”. International Journal of Innovative Research and Scientific Studies, vol. 8, no. 3, May 2025, pp. 1563-72, doi:10.53894/ijirss.v8i3.6837.