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Fitriyah Wulandari, Santosa AM, Agus Kadarmanto. Pengaruh Penerapan Model Problem Possing Terhadap Hasil Belajar Matematika Kelas VIII SMP Islam Miftahul Hidayah . SIGMA [Internet]. 2024Feb.14 [cited 2026Feb.19];2(1):35-42. Available from: https://www.journal.unibo.ac.id/index.php/sigma/article/view/845