Aytekin ÇÖKELEZ, and Sibel YALÇIN. “The Analysis of the Mental Models of Students in Grade-7 Regarding Atom Concept”. Elementary Education Online 11, no. 2 (December 16, 2023): 452–471. Accessed July 22, 2024. https://ilkogretim-online.org/index.php/pub/article/view/3779.