Metruk, Rastislav, and Patrícia Rafajdusová. “Slovak EFL Teachers’ Perceptions of Using L1 at English Lessons”. International Journal of Instruction 17, no. 1 (January 1, 2024): 755–768. Accessed June 7, 2025. https://e-iji.net/ats/index.php/pub/article/view/543.