Nong, Huyen. “CURRENT STATUS OF PROBLEM-SOLVING SKILLS EDUCATION FOR 5-6 YEAR OLD CHILDREN THROUGH EXPERIENTIAL ACTIVITIES IN SOME KINDERGARTENS IN TUYEN QUANG CITY”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 10, no. 6 (December 30, 2024). Accessed August 31, 2025. https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/1280.