1.
Situmorang H, Remigius A, Lumban Gaol R, Silaban P. PENGARUH REWARD DAN PUNISHMENT TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS III SD HKBP . educatio [Internet]. 2020 Nov. 25 [cited 2025 Apr. 29];6(2):278-81. Available from: https://ejournal.unma.ac.id/index.php/educatio/article/view/442