Vaiopoulou, Julie, et George Papageorgiou. « Primary students’ Conceptions of the Earth: Re-Examining a Fundamental Research Hypothesis on Mental Models ». Preschool and Primary Education 6, no. 1 (avril 16, 2018): 23–34. Consulté le octobre 28, 2025. https://ejournals.epublishing.ekt.gr/index.php/education/article/view/14210.