Yulia, Zulfa, and Das Salirawati. “The Effect of Problem Based Learning on Students’ Critical Thinking Ability and Scientific Attitude”. Jurnal Penelitian Pendidikan IPA 9, no. 6 (June 25, 2023): 4211–4217. Accessed November 22, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/3026.