Sibagariang SA, Sianturi TA, Sitompul S. The Relationship between Parents’ Attention and Self Concept with Learning Achievements in Tenth Grade Students of SMA Negeri 3 Pematangsiantar. ijels. 2020;5(6). Accessed January 5, 2025. https://journal-repository.com/index.php/ijels/article/view/2727