ARIFIN, N. Pembinaan Olimpiade Matematika Bagi Peserta Didik SD Negeri 002 Samarinda Utara. Jurnal Karya Abdi Masyarakat, [S. l.], v. 4, n. 1, p. 126-131, 2020. DOI: 10.22437/jkam.v4i1.9829. Disponível em: https://mail.online-journal.unja.ac.id/JKAM/article/view/9829. Acesso em: 26 nov. 2024.