N. T. N. M. Tran, T. B. T. Dao, H. H. Cao, and T. D. Nguyen, “Measures to build material environment for children aged 5-6 to discover science at kindergarten schools in Lap Vo district, Dong Thap province”, Dong Thap University Journal of Science, vol. 12, no. 7, pp. 88–98, Oct. 2023.