Saputra, Agus, et al. “Efektivitas Model Direct Instruction Terhadap Hasil Belajar Matematika Kelas V Di SD Mujahidin”. Jurnal Inovasi Pendidikan Dan Pengajaran (JIPP), vol. 5, no. 1, Mar. 2026, pp. 76-83, https://journal.upgripnk.ac.id/index.php/JIPP/article/view/10327.