Lestari, Nur Puji. “Preliminary Research: Development of A Teaching Module Based on Problem Based Learning To Improve Students’ Mathematical Literacy Abilities”. Mathline : Jurnal Matematika dan Pendidikan Matematika 8, no. 4 (November 29, 2023): 1487–1506. Accessed February 27, 2026. http://mathline.unwir.ac.id/index.php/Mathline/article/view/539.