Dólera Almaida, Josefa, and Encarna Sánchez-Jiménez. “Pedro Puig Adam and the Heuristic Method in the Teaching of Mathematics in Spain”. El Futuro del Pasado 15 (March 21, 2024): 703–723. Accessed July 17, 2024. https://revistas.usal.es/uno/index.php/1989-9289/article/view/31159.