WANTAH, A.; PRASTYO, H. ANALYSIS OF JUNIOR HIGH SCHOOL STUDENTS’ LEARNING OBSTACLES IN UNDERSTANDING THE CONCEPT ABOUT LINES AND ANGLES. Jurnal Padegogik, [S. l.], v. 5, n. 1, p. 54-73, 2022. DOI: 10.35974/jpd.v5i1.2722. Disponível em: https://jurnal.unai.edu/index.php/jpd/article/view/2722. Acesso em: 3 jul. 2022.