Guo Y, Wang Y, Ortega-Martín JL. The impact of blended learning-based scaffolding techniques on learners’ self-efficacy and willingness to communicate. PortaLin [Internet]. 2023 Jun. 27 [cited 2026 Apr. 19];(40):253-7. Available from: https://revistaseug.ugr.es/index.php/portalin/article/view/27061