NESSA, Widya; HARTONO, Yusuf; HILTRIMARTIN, Cecil. Pengembangan Buku Siswa Materi Jarak pada Ruang Dimensi Tiga Berbasis Science, Technology, Engineering, and Mathematics (STEM) Problem-Based Learning di Kelas X. Jurnal Elemen, [S. l.], v. 3, n. 1, p. 1–14, 2017. DOI: 10.29408/jel.v3i1.273. Disponível em: https://e-journal.hamzanwadi.ac.id/index.php/jel/article/view/273. Acesso em: 22 dec. 2024.