Sibagariang, Susy Alestriani, Tambos August Sianturi, and Sahat Sitompul. “The Relationship Between Parents’ Attention and Self Concept With Learning Achievements in Tenth Grade Students of SMA Negeri 3 Pematangsiantar”.
International Journal of English Literature and Social Sciences (IJELS) 5, no. 6 (November 19, 2020). Accessed May 1, 2025.
https://journal-repository.com/index.php/ijels/article/view/2727.