Toogmee, P., Paya, K., & Petchthai, S. (2026). The Development of E-Learning Lessons, Skills of Spreadsheet and Data Management Applications. The Golden Teak : Science and Technology Journal (GTSJ.), 5(1), 43–51. retrieved from https://li02.tci-thaijo.org/index.php/gts/article/view/1804