Kemampuan Pemecahan Masalah Matematika Siswa pada Pembelajaran Matematika Menggunakan Strategi Abduktif-Deduktif di SMA Negeri 1 Indralaya Utara by Suci Ariani, Yusuf Hartono, Cecil Hiltrimartin

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Investigating lower secondary school students’ geometric argumentation structure using Toulmin model by M. Rizky Ramandani, Yusuf Hartono, Cecil Hiltrimartin, Nyimas Aisyah

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PENGEMBANGAN LKPD FUNGSI KUADRAT BERBASIS PEMBUKTIAN DENGAN MODEL ARGUMENTASI TOULMIN UNTUK MEMFASILITASI KEMAMPUAN ARGUMEN MATEMATIS by Debi Suci Putri, Cecil Hiltrimartin, Yusuf Hartono, Nyimas Aisyah

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Microlearning-based media of probability: An innovative student worksheet by Novi Komariyatiningsih, Yusuf Hartono, Ratu Ilma Indra Putri, Cecil Hiltrimartin

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Personal factors shaping pre-service math and science teachers’ attitudes: An SEM study by Nyimas Aisyah, Ismet Ismet, Cecil Hiltrimartin, Ida Sriyanti, Sary Silvhiany, Meilinda Meilinda

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