PUTRI, Zahrah Fathinnisa Putri. Pengembangan Buku Digital Berbasis Contextual Teaching and Learning untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa Kelas VII SMPN 27 Medan. Journal of Student Research, [S. l.], v. 1, n. 5, p. 1–13, 2023. DOI: 10.55606/jsr.v1i5.1535. Disponível em: https://ejurnal.stie-trianandra.ac.id/index.php/jsr/article/view/1535. Acesso em: 23 dec. 2024.