1.
Utami AD, Zainudin M, Noviana S. Assessing The Characteristics of Elementary School Students’ Mental Models in Understanding The Concept of Integers. basicedu [Internet]. 2021 Dec. 19 [cited 2024 Jul. 22];5(6):6409-17. Available from: https://jbasic.org/index.php/basicedu/article/view/1649