ARIES, Achmad.
 Pengaruh Model Pembelajaran Problem Based Learning (PBL) Terhadap Hasil Belajar Matematika Pada Siswa Kelas VII Di SMP Sultan Agung Surabaya.
<strong>Postulat :  Jurnal Inovasi Pendidikan Matematika</strong>, [S.l.], v. 3, n. 1, p. 1-13, july 2022.
ISSN 2723-0600.
Available at: &lt;<a href="https://journal.umg.ac.id/index.php/postulat/article/view/4312" target="_new">https://journal.umg.ac.id/index.php/postulat/article/view/4312</a>&gt;. Date accessed: 23 apr. 2024.
doi: <a href="http://dx.doi.org/10.30587/postulat.v3i1.4312">http://dx.doi.org/10.30587/postulat.v3i1.4312</a>.