ชมจุมจัง ส, แสงวณิช ข. Effects of Spatial Activities on Drawing Skills for Sixth Grade Students. EDUCU [Internet]. 2019 Dec. 27 [cited 2024 Apr. 29];47(Suppl. 2):310-27. Available from: https://so02.tci-thaijo.org/index.php/EDUCU/article/view/232863