Chinnawong, W. ., A. . Onthanee, and J. . Jantakoon. “Spatial Thinking Skills: A Skill Needed to Learn Geology”. Faculty of Humanities and Social Sciences Thepsatri Rajabhat University Jounal, vol. 13, no. 2, Aug. 2022, pp. 205-20, https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/247345.