KARIM, A. Analisis Kualitas Soal Perlombaan Matematika Tingkat SMA. Titian Ilmu: Jurnal Ilmiah Multi Sciences, [S. l.], v. 10, n. 1, p. 1–8, 2018. DOI: 10.30599/jti.v10i1.126. Disponível em: https://journal.unuha.ac.id/index.php/JTI/article/view/126. Acesso em: 29 mar. 2024.