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Himawati SA, Aini IN, Warmi A. Description Of Mathematic Problem Solving Ability for Class X Senior High School Students Based On Polya Steps: Deskripsi Kemampuan Pemecahan Masalah Matematis Siswa SMA Kelas X Berdasarkan Langkah-Langkah Polya. Mathline [Internet]. 2021 Oct. 2 [cited 2022 Aug. 20];6(2):191-206. Available from: https://mathline.unwir.ac.id/index.php/Mathline/article/view/226