1.
Hernández Hernández M del R, Fuenlabrada Velázquez IR. The approach to the decimal number system in textbooks and in first grade primary school classrooms. RELIME [Internet]. 2024 Jul. 31 [cited 2026 Nov. 15];27(2):151-74. Available from: https://relime.org/index.php/relime/article/view/686