สุขเป็ง จ, ราชไชยา ภ, ศิรินภาดล จ. The Results of the Mathematical Learning Management of Addition, Subtraction, Multiplication, and Division of Counts by Fourth-grade Students Using TGT Techniques. KRUPAK [internet]. 2025 Jan. 29 [cited 2025 Sep. 4];1(1):1-7. available from: https://so17.tci-thaijo.org/index.php/KRUPAK/article/view/713