Jariah, A. (2021). Application of Piaget’s Learning Theory to Improve Learning Achievement of Class VII Students in PKN Subjects at SMP Negeri 1 Brang Rea for the 2020/2021 Academic Year. Jurnal LENTERA: Jurnal Studi Pendidikan, 3(1), 1-12. https://doi.org/10.51518/lentera.v3i1.38