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 (Sep. 2026), 38–47. DOI:https://doi.org/10.56393/kognisi.v6i1.4228.