Khuearnropkhet, C., K. Wangmanee, and S. Arttaweekun. “Using Active Learning activities to develop basic mathematics skills The number and numbers of students Kindergarten 3/1, Kongthabbok Uppatham Boriboon Thanawat School, Mueang District, Chiang Rai Province”. KRURAJAPAK, vol. 1, no. 1, Jan. 2025, pp. 43-50, https://so17.tci-thaijo.org/index.php/KRUPAK/article/view/700.