Sibagariang, Susy Alestriani, Tambos August Sianturi, and Sahat Sitompul. 2020. “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 (6).
https://journal-repository.com/index.php/ijels/article/view/2727.