Horadal, Arunee, and Chanipun Chartisathian. 2021. “The Development of Knowledge and Ability for Activity Management to Develop Preschool Children’s Analytical Thinking with Graphic Organizers for Preschool Teachers in Bangkok Metropolis and Vicinity”. STOU Education Journal 14 (1):1-14. https://so05.tci-thaijo.org/index.php/edjour_stou/article/view/247228.