Application of Problem Based Learning Assisted by E-Cergam Babad Pati to Improve Understanding of Social Science Concepts for Elementary School Students. JISIP (Jurnal Ilmu Sosial dan Pendidikan), [S. l.], v. 10, n. 4, p. 2472–2482, 2026. DOI: 10.58258/1nyeqy78. Disponível em: https://ejournal.mandalanursa.org/index.php/JISIP/article/view/11443. Acesso em: 4 nov. 2026.