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Sri Hayati, Ria Kurniasari, and Hani Handayani, “PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) BERBANTUAN MEDIA POP-UP BOOK TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MATERI KELILING DAN LUAS PERSEGI PANJANG”, JESA, vol. 9, no. 2, pp. 115–124, Jul. 2025.