Aragones, Cristian. “21st  Century Skills and Academic Performance of Grade Six Pupils”. International Journal of Sustainability and Advanced Integrated Research 2, no. 1 (March 31, 2026): 1180–1187. Accessed October 18, 2026. https://serverojs1-ijsair.sharkcluster.com/index.php/ijsair/article/view/197.