MUHAMMAD INDRA IRMANSYAH; AULI UZAMI. ANALYSIS OF CLASS CLEANLINESS ON THE LEARNING CONCENTRATION OF 8th GRADE JUNIOR HIGH SCHOOL STUDENTS. Edelweiss : Journal Of Innovation In Educational Research, [S. l.], v. 1, n. 1, 2023. DOI: 10.62462/edelweiss.v1i1.3. Disponível em: https://journal.mitkomindotama.com/index.php/edelweiss/article/view/3. Acesso em: 27 apr. 2026.