Velasco Arranz B, Urbina Ramírez S. Elaboration and validation processes of an evaluation tool for digital teaching materials for the German language. TCE [Internet]. 2023 Jan. 4 [cited 2026 Oct. 6];(24):71-90. Available from: https://www.tecnologia-ciencia-educacion.com/index.php/TCE/article/view/1022