Daga, A. T., Wahyudin, D., & Susilana, R. (2022). The 21st Century Skills of Elementary School Students in 3T Regions (Frontier, Outermost, and Least Developed Regions). Jurnal Kependidikan: Jurnal Hasil Penelitian Dan Kajian Kepustakaan Di Bidang Pendidikan, Pengajaran Dan Pembelajaran, 8(4), 817–830. https://doi.org/10.33394/jk.v8i4.6239