1.
สิงห์คำน, ชมภูคำว, ชมภูคำพ. Development of Mathematics Activity Through Cooperative Learning with the Geometer’s Sketchpad Program to Encourage Learning Achievement and Creative Thinking Skills of Mathayomsuksa 2 Students. J.Grad Res [Internet]. 2018Dec.25 [cited 2020Jun.6];9(2):1-20. Available from: https://so02.tci-thaijo.org/index.php/banditvijai/article/view/133933