Sumolang, Nortje. “Case Study of Intergroup Conflict in Student Groups at Senior High School State 1 Kakas Minahasa Regency”. International Journal of Information Technology and Education 4, no. 3 (September 10, 2025): 19–28. Accessed September 15, 2025. http://ijite.jredu.id/index.php/ijite/article/view/261.