Kılınç, Büşra, and Mehmet Diyaddin Yaşar. “Development of an Achievement Test for the 6th Grade Sound and Its Properties Unit”. Science Insights Education Frontiers 23, no. 1 (July 24, 2024): 3675–3692. Accessed April 17, 2026. https://bonoi.org/index.php/sief/article/view/1249.