relation: http://repository./58866/ title: Peningkatan Konsentrasi Dan Hasil Belajar Materi Perkalian Menggunakan Model Problem Based Learning Siswa Kelas IV SDN Ngawen IV creator: NUGRAHENI, ERIKA PATMA subject: LB1501 Primary Education date: 2026 type: Thesis type: NonPeerReviewed format: text language: id identifier: http://repository./58866/1/221134031.pdf format: text language: id identifier: http://repository./58866/2/221134031_full.pdf identifier: NUGRAHENI, ERIKA PATMA (2026) Peningkatan Konsentrasi Dan Hasil Belajar Materi Perkalian Menggunakan Model Problem Based Learning Siswa Kelas IV SDN Ngawen IV. Skripsi thesis, Sanata Dharma University.