Suthat na Ayuthya, A. ., J. . Khlaisang, and O. . Natakuatoong. “Development of Online Training to Enhance Systems Thinking Ability: A Study of Existing Conditions and Expectations”. Journal of Education Studies, vol. 48, no. 2, June 2020, pp. 358-81, https://so02.tci-thaijo.org/index.php/EDUCU/article/view/243216.