Wantah, Andrew, and Hendri Prastyo. “ANALYSIS OF JUNIOR HIGH SCHOOL STUDENTS’ LEARNING OBSTACLES IN UNDERSTANDING THE CONCEPT ABOUT LINES AND ANGLES”. Jurnal Padegogik 5, no. 1 (January 17, 2022): 54-73. Accessed November 22, 2024. https://jurnal.unai.edu/index.php/jpd/article/view/2722.