10.65624 PENGARUH PROBLEM BASED LEARNING BERBASIS ETNOMATEMATIKA SUKU TORAJA TERHADAP HASIL BELAJAR  BANGUN DATAR KELAS V SD. FIP Jurnal [Internet]. 2026 Jun. 27 [cited 2026 Aug. 8];2(1):164-72. Available from: https://banisalehjurnal.ubs.ac.id/index.php/joebas/article/view/569