YUSTIMAR. PENINGKATAN HASIL BELAJAR BIOLOGI MELALUI PENERAPAN MODEL PEMBELAJARAN LANGSUNG (DIRECT INSTRUCTION) SISWA KELAS V SDN 029 RUMBAI PEKANBARU. Primary: Jurnal Pendidikan Guru Sekolah Dasar, [S. l.], v. 5, n. 1, p. 83–91, 2016. DOI: 10.33578/. Disponível em: https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/1107. Acesso em: 6 oct. 2026.