GAOL, E. G. L.; SILABAN, R.; SUDRAJAT, A.; SITORUS, M.; NST, Z. Analysis of the Need to Develop Innovative Teaching Materials Based on Problem-Based Learning (PBL) Integrated with the Local Wisdom of Marpangir Batak Toba on the Topic of Electrolyte and Non-Electrolyte Solutions. Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan, [S. l.], v. 6, n. 4, p. 2602–2611, 2026. DOI: 10.36312/panthera.v6i4.1678. Disponível em: https://www.e-journal.lp3kamandanu.com/index.php/panthera/article/view/1678. Acesso em: 11 nov. 2026.