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Ciptasari AN. Peningkatan Motivasi dan Hasil Belajar Peserta Didik Kelas X melalui Model Pembelajaran Problem Based Learning. psnppg [Internet]. 2023 Nov. 30 [cited 2025 Dec. 5];1(2):3881-9. Available from: https://conference.upgris.ac.id/index.php/psnppg/article/view/5723