DANIYATI, Nadzifah Ajeng.
 VARIASI SOAL MATEMATIKA DENGAN METODE PROBLEM SOLVING UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS.
<strong>PYTHAGORAS : Jurnal Program Studi Pendidikan Matematika</strong>, [S.l.], v. 3, n. 2, feb. 2017.
ISSN 2615-7926.
Tersedia pada: &lt;<a href="https://www.journal.unrika.ac.id/index.php/jurnalphythagoras/article/view/580" target="_new">https://www.journal.unrika.ac.id/index.php/jurnalphythagoras/article/view/580</a>&gt;. Tanggal Akses: 16 feb. 2026
doi: <a href="https://doi.org/10.33373/pythagoras.v3i2.580">https://doi.org/10.33373/pythagoras.v3i2.580</a>.