Rini Apriani, and Sugiman. “Learning Obstacles and Students’ Statistical Thinking Levels in Elementary Schools: A Foundation for Designing a Hypothetical Learning Trajectory”. EduMatSains : Jurnal Pendidikan, Matematika dan Sains 11, no. 2 (October 31, 2026): 466–479. Accessed November 2, 2026. https://ejournal.uki.ac.id/index.php/edumatsains/article/view/8686.