1.
Picado Alfaro ME, Espinoza González J. The Didactic Suggestions into a Textbook of Arithmetic for Teacher Training in Normal Sections in Costa Rica in the Nineteenth Century. HME [Internet]. 2019Dec.9 [cited 2024Nov.21];(11):151-90. Available from: https://revistas.uned.es/index.php/HMe/article/view/25108