ULUM, Zauful; AFFAF, Moh. PELATIHAN MATERI OLIMPIADE BILANGAN BAGI GURU-GURU SD DI KABUPATEN BANGKALAN. JA (Jurnal Abdiku) : Jurnal Pengabdian Kepada Masyarakat, [S. l.], v. 1, n. 2, p. 55–60, 2018. Disponível em: https://publikasi.stkippgri-bkl.ac.id/index.php/JA/article/view/342. Acesso em: 7 may. 2025.