Saksopon Suk-aun. “A Study of teachers’ Functional Competency in the 21st Century in Mueangchaiphrachaotak Network School Group under Phranakhonsiayuttaya Primary Educational Service Area Office 1”. Panya, Vol. 27, no. 2, Dec. 2020, pp. 63-71, https://so06.tci-thaijo.org/index.php/panya-thjo/article/view/245502.