ABIDIN, Minhajjul; RETNAWATI, Heri. A diagnosis of difficulties in answering questions of circle material on junior high school students. Jurnal Penelitian dan Evaluasi Pendidikan, [S. l.], v. 23, n. 2, p. 144–155, 2019. DOI: 10.21831/pep.v23i2.16454. Disponível em: https://journal.uny.ac.id/index.php/jpep/article/view/16454. Acesso em: 4 may. 2025.