Tran, Viet Nhi, and Tuan Vinh Nguyen. “Project-Based Learning in Early Childhood Education: A Bibliometric Analysis over Five Decades (1970–2023)”. Social Sciences and Humanities Issue 15, no. 3 (April 5, 2026): 1–16. Accessed September 8, 2026. https://dthujs.vn/index.php/sshen/article/view/2582.