NUGRAHA, Markus Asta Patma; SINOLUNGAN, Jehosua S.V.; NUR, Rezeki; NURIDAH, Siti; NOFIRMAN, Nofirman; CAHYONO, Didik. Conceptual Analysis of Problem-Based Learning Model in Improving Students Critical Thinking Skill. Journal of Education Research, [S. l.], v. 4, n. 2, p. 466–473, 2023. DOI: 10.37985/jer.v4i2.185. Disponível em: https://www.jer.or.id/index.php/jer/article/view/185. Acesso em: 9 oct. 2025.