MAYA PUTRI. Penerapan Model Problem Based Learning (PBL) Untuk Meningkatkan Hasil Belajar Siswa pada Materi Permintaan dan Penawaran. Jurnal Kinerja Kependidikan (JKK): Facilities of Educator Career and Educational Scientific Information, [S. l.], v. 2, n. 2, p. 251–264, 2021. DOI: 10.32672/jkk.v2i2.41. Disponível em: https://journalserambi.org/index.php/jkk/article/view/41. Acesso em: 10 sep. 2025.