SYAFIRA FUAD, A. . Development of Student Worksheets (LKPD) Using Problem Based Learning Models on Flat Shape Materials. Jurnal Riset Ilmu Pendidikan, [S. l.], v. 2, n. 2, p. 88–92, 2022. DOI: 10.56495/jrip.v2i2.110. Disponível em: https://jurnal.larisma.or.id/index.php/JRIP/article/view/110. Acesso em: 6 jul. 2025.