Ho HPM, Nguyen VB. Expanding 4-graders’ vocabularyin teaching spelling, reading subject at Ca Mau city primary schools via cross-subject integration. Tạp chí Khoa học Đại học Đồng Tháp [Internet]. 2019 Aug. 25 [cited 2026 Aug. 14];(39):3-7. Available from: https://dthujs.vn/index.php/dthujs/article/view/313