friska, sonia yulia and Sari, A. N. (2020) “Improved Learning Outcomes Problem Solving Problem Fractions Using Polya Strategies: Peningkatan Hasil Belajar Pemecahan Masalah Soal Cerita Pecahan Menggunakan Strategi Polya”, Journal of Vocational Education and Information Technology (JVEIT), 1(1), pp. 1–6. doi: 10.56667/jveit.v1i1.36.