Mulya, Z. A., Kurnia Putri, I. K., & Chadjijah, S. (2025). Kesulitan belajar dalam bingkai teori Piaget pada siswa SMP usia 13–15 tahun: Systematic literature review: Learning difficulties within the framework of Piaget’s theory among junior high school students aged 13–15 years: A systematic literature review. Kharismatik : Jurnal Ilmu Pendidikan, 3(2), 112–124. https://doi.org/10.70757/kharismatik.v3i2.100