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Tusyahdiah, Nur Halimah and Djazilan, Muhammad Sukron and Retnawati, Tri and Mega, Mega (2023) Peningkatan Hasil Belajar Matematika Materi Sudut melalui Model Problem Based Learning Berbantuan Benda Konkret Siswa SD. In: Prosiding National Conference for Ummah (NCU) 2023, 2023, Surabaya.