Amirullah, G., Yatri, I. and Handayani, T. (2026) “Social Return on Investment of a Literacy and Numeracy Program in Ketapang Regency Indonesia”, Kognisi : Jurnal Penelitian Pendidikan Sekolah Dasar, 6(1), pp. 38–47. doi: 10.56393/kognisi.v6i1.4228.