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Pinkan Deviana Khairunnisa, Indayana Febriani Tanjung. STEM Based Student Worksheets to Improve Ecosystem Material Critical Thinking. JP2 [Internet]. 2023 Mar. 18 [cited 2024 May 5];6(1):48-55. Available from: https://ejournal.undiksha.ac.id/index.php/JP2/article/view/59414