SITUMORANG, Jesika; HASAIRIN, Ashar. Analisis Kesulitan Belajar Siswa: Pendekatan Tes Diagnostik Berganda Dua Tingkat dan Kuesioner: (Analysis of Student Learning Difficulties: Two-Tier Multiple-Choice Diagnostic Test and A Questionnaire Approach). BIODIK, [S. l.], v. 11, n. 02, p. 475–484, 2025. DOI: 10.22437/biodik.v11i02.43722. Disponível em: https://www.online-journal.unja.ac.id/biodik/article/view/43722. Acesso em: 19 apr. 2026.