Jingou Feng. “Cognitive Development In A Bilingual Environment: To Explore The Effects Of L1 And L2 Use On Early Cognitive Performance In Children”. Educational Administration: Theory and Practice 30, no. 4 (April 20, 2024): 3673–3683. Accessed May 18, 2024. http://kuey.net/index.php/kuey/article/view/2105.