Sirojuddin Abror, and Tsediso Robert Makoelle. “Evaluating the Effectiveness of Outcome-Based Curriculum Implementation in Improving 21st-Century Skills Among Secondary School Students”. Journal of Education and Learning Sciences 5, no. 2 (October 20, 2025): 60–76. Accessed February 4, 2026. https://jurnal.gerakanedukasi.com/index.php/gerasi/article/view/175.