An empirical study of the “one person one language” foreign language instruction method in the Sunshine Preschool in Ágfalva. trainingandpractice [Internet]. 2021 Nov. 28 [cited 2025 Dec. 5];19(3-4):180-8. Available from: https://journal.uni-mate.hu/index.php/trainingandpractice/article/view/3937