SUHENDAR, Uki; EKAYANTI, Arta; MERONA, Senja P. Pola Pembinaan Olimpiade Sains Nasional Matematika SMP di Kabupaten Ponorogo. Mosharafa: Jurnal Pendidikan Matematika, [S. l.], v. 9, n. 2, p. 179–190, 2020. DOI: 10.31980/mosharafa.v9i2.602. Disponível em: https://journal.institutpendidikan.ac.id/index.php/mosharafa/article/view/602. Acesso em: 5 jul. 2024.