LOLA WIDIA SARI NASUTION; SUJARWO. Improving Student Learning Outcomes in Theme 2 Always Saving Energy Through Problem Based Learning Models Assisted by Audio Visual Media in Class IV SD IT Darussalam Deli Tua. International Journal of Educational Research Excellence (IJERE), [S. l.], v. 2, n. 2, p. 191–196, 2023. DOI: 10.55299/ijere.v2i2.463. Disponível em: https://ejournal.ipinternasional.com/index.php/ijere/article/view/463. Acesso em: 22 nov. 2024.