RITONGA, Betharia; YEKTININGTYAS, Wigati; BUDIARTI, Indah Slamet; KUSDIANTO, Kusdianto. Implementasi Problem Based Learning Berbasis Etnosains Pada Materi Pembiasan Cahaya di SD YPK Betfage Kabare. Indonesian Journal of Multidisciplinary on Social and Technology, [S. l.], v. 4, n. 2, p. 2214–2220, 2026. DOI: 10.69693/ijmst.v4i2.10319. Disponível em: https://journal.ilmudata.co.id/index.php/ijmst/article/view/10319. Acesso em: 19 jun. 2026.