Kheiwsri, Wiphawee, and Yuthapong Thipchart. 2024. “A Study of Geometric Thinking with Spatial Sense of Matthayomsuksa 3 Students”. Journal for Developing the Social and Community 11 (2). Bangkok, Thailand:37-52. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/268778.