HAMID, Abdul; HIKMAH, Nur; SHOLAHUDDIN, Arif. Problem-Based Learning with Multilevel Representation: A Strategy to Master the Ionic Equilibrium in Solution Concepts. JTK (Jurnal Tadris Kimiya), [S. l.], v. 7, n. 1, p. 78–90, 2022. DOI: 10.15575/jtk.v7i1.10746. Disponível em: https://journal.uinsgd.ac.id/index.php/tadris-kimiya/article/view/10746. Acesso em: 6 dec. 2025.