SITORUS, Jesika; RUSLAN, Dede; DEWI, Rosmala. Development of PPKn worksheet using problem-based learning to improve critical thinking. Inovasi Kurikulum, [S. l.], v. 22, n. 4, p. 2315–2330, 2025. DOI: 10.64014/jik.v22i4.123. Disponível em: https://ejournal-hipkin.or.id/index.php/jik/article/view/123. Acesso em: 29 jan. 2026.