MARKUS, F. A. Bimbingan Belajar Matematika Kepada Siswa Kelas IX Di SMP Kristen Payeti, Waingapu, Sumba Timur, NTT. Jurnal Pengabdian Barelang, [S. l.], v. 1, n. 02, p. 24–28, 2019. DOI: 10.33884/jpb.v1i02.1203. Disponível em: https://ejournal.upbatam.ac.id/index.php/jpkm/article/view/1203. Acesso em: 29 mar. 2024.