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Güntensperger, A., & Wal, R. a. D. (2024). German as Foreign Language Insight into the Teaching Units in Switzerland. International Journal of Instruction, 17(2), 185–198. https://doi.org/10.29333/iji.2024.17211a
Daraghmi, A., & Wal, R. a. D. (2023). The significance of non-verbal behaviour in teacher-learner interaction in GFL classes. Obrazovanie I Nauka, 25(9), 156–170. https://doi.org/10.17853/1994-5639-2023-9-156-170