Nugraha MAP, Sinolungan JS, Nur R, Nuridah S, Nofirman N, Cahyono D. Conceptual Analysis of Problem-Based Learning Model in Improving Students Critical Thinking Skill. J. Educ. Res. [Internet]. 2023 Apr. 30 [cited 2025 Oct. 9];4(2):466-73. Available from: https://www.jer.or.id/index.php/jer/article/view/185