Aybirdi, Nilüfer, Hüseyin Efe, and Çağla Atasoy Şal. 2023. “The Impact of Flipped Learning on L2 Learners’ Achievements: A Meta-Analysis”. Shanlax International Journal of Education 11 (S1-Jan), 41-60. https://doi.org/10.34293/education.v11iS1-Jan.5891.