Banpho, T., Jongkonklang, S. and Keeratichamroen, W. (2019) “Enhancing the Primary Students’ 21st Century Learning Skills through the Curriculum Integration”, Ratchaphruek Journal, 17(3), pp. 33–42. available at: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/173739 (accessed: 26 August 2026).