DEVI IRENE M RUMAPEA; SUSY ALESTRIANI SIBAGARIANG; BENJAMIN ALBERT SIMAMORA. The Effect of Online Game Addiction and Learning Concentration on Social Science Students’ Learning Outcomes in Eight Grage of Private Junior High School Kartika 1-4 Pematang Siantar. International Journal of Humanities and Education Development (IJHED), [S. l.], v. 4, n. 5, p. 91–94, 2022. DOI: 10.22161/jhed.4.5.13. Disponível em: https://theshillonga.com/index.php/jhed/article/view/189.. Acesso em: 16 nov. 2024.