TAMBUNAN, Husna Parluhutan. HUBUNGAN PEMBERIAN PENGUATAN DENGAN MOTIVASI BELAJAR SISWA DI KELAS IV SD NEGERI 067689 MEDAN. JGK (Jurnal Guru Kita), [S. l.], v. 3, n. 3, p. 308–314, 2019. DOI: 10.24114/jgk.v3i3.14607. Disponível em: http://103.242.233.34/index.php/jgkp/article/view/14607. Acesso em: 5 jan. 2025.