IMPLEMENTATION OF PROBLEM-BASED LEARNING METHODS IN IMPROVING STUDENTS’ UNDERSTANDING OF THE CONCEPT OF TAWHIDIN JUNIOR HIGH SCHOOL. Indonesian Journal of Education (INJOE), [S. l.], v. 4, n. 3, p. 493–502, 2025. Disponível em: https://felifa.net/index.php/INJOE/article/view/300. Acesso em: 27 nov. 2025.