Thongkhot, P., N. Changsri, and S. Worawiset. “Students’ Conceptual Understanding on Division with Decimals in Mathematics Classroom”. Dhammathas Academic Journal, vol. 23, no. 4, Dec. 2023, pp. 127-38, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/263966.