Rismatul Amaliyah, et al. “Peningkatan Kemampuan Berfikir Kritis Peserta Didik Melalui Model Problem Based Instruction (Pbi) Pada Tema 2 Subtema 1 Kelas V Sd Negeri 1 Waluyorejo”. Concept: Journal of Social Humanities and Education, vol. 2, no. 1, Mar. 2023, pp. 232-40, doi:10.55606/concept.v2i1.249.