Briant Sunggul Pakpahan. The Impact of Social Interaction for the Result of Social Subject Grade VII in UPTD SMP Negeri 1 Pematang Siantar. IJIST [Internet]. 2023 Nov. 22 [cited 2026 Apr. 20];1(5):727-34. Available from: https://journal.multitechpublisher.com/index.php/ijist/article/view/748